Fossil Taxonomy – Reduviasporonites

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Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of 5 cells; left outer cell without a terminal thickening or rim.

SizeMean length of cells 15µm

Country of originUSA

EF reference of specimen on palynological slideC34

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionPoorly preserved ?double chain

SizeMean length of cells 15µm

Country of originUSA

EF reference of specimen on palynological slideD43

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionTwo cells in chain.

SizeMean length of cells 11µm

Country of originUSA

EF reference of specimen on palynological slideE15

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionTwo cells in chain.

SizeMean length of cells 12µm

Country of originUSA

EF reference of specimen on palynological slideE18

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionTwo recently separated cells.

SizeMean length of cells 12µm

Country of originUSA

EF reference of specimen on palynological slideE19

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionTwo cells in chain.

SizeMean length of cells 14µm

Country of originUSA

EF reference of specimen on palynological slideE19

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of cells; neither has an outer terminal rim or thickening. Left cell shows inner body through the crack in the outer cell wall.

SizeMean length of cells 16µm

Country of originUSA

EF reference of specimen on palynological slideE19/4

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of three cells; neither of the outer two cells has an outer terminal rim or thickening.

SizeMean length of cells 11µm

Country of originUSA

EF reference of specimen on palynological slideE23

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain with longitudinally collapsed cells.

SizeMean length of cells 15µm

Country of originUSA

EF reference of specimen on palynological slideE36/4

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain with longitudinally collapsed cells.

SizeMean length of cells 14µm

Country of originUSA

EF reference of specimen on palynological slideG16

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain with relatively well preserved cells close in form to some of the Alpine specimens. The right edge of the right hand cell appears not to have been connected to another cell. The left cell has clearly been detached from another cell.

SizeLengths of cells 12, 13 and 22µm.

Country of originUSA

EF reference of specimen on palynological slideG36

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain with longitudinally collapsed cells.

SizeMean length of cells 14µm

Country of originUSA

EF reference of specimen on palynological slideG39/2

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionSingle cell; perhaps an ‘end cell’. Right side of cell has no terminal rim or thickening. Left side with thickening, possibly was part of a chain in which it was the ‘end cell’.

SizeCell length 20µm

Country of originUSA

EF reference of specimen on palynological slideG41

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionSingle cell

SizeCell length 19µm

Country of originUSA

EF reference of specimen on palynological slideG44

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain with relatively well preserved cells close in form to some of the specimens from the Mazzin Member, Austria. The right edge of the right hand cell appears not to have been connected to another cell. The left cell has clearly been detached from another cell.

SizeMean length of cells 12µm

Country of originUSA

EF reference of specimen on palynological slideH10/2

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionSingle cell with a discontinuous concentric pattern of folds

SizeApprox. length 15 µm

Country of originUSA

EF reference of specimen on palynological slideH40/4

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain with longitudinally collapsed cells.

SizeMean length of cells 13µm

Country of originUSA

EF reference of specimen on palynological slideJ11/2

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionA pair of joined cells. Neither of the outer cells appears to have been connected to other cells.

SizeMean length of cells 13µm

Country of originUSA

EF reference of specimen on palynological slideJ24

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionA pair of joined cells with considerable overlap. Neither of the outer cells appears to have been connected to other cells.

SizeMean length of cells 16µm

Country of originUSA

EF reference of specimen on palynological slideJ27/3

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain with longitudinally collapsed cells. Neither of the outer cells appears to have been connected to other cells.

SizeMean length of cells 15µm

Country of originUSA

EF reference of specimen on palynological slideJ32

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of 4 longitudinally collapsed cells. Left cell displays strong concentric fold pattern, perhaps indicating a folded inner body or perhaps a system of invaginations in the outer cell wall.

SizeMean length of cells 13µm

Country of originUSA

EF reference of specimen on palynological slideL24/4

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of 5 cells each with a concentric to rectilinear pattern of folds.

SizeMean length of cells 13µm

Country of originUSA

EF reference of specimen on palynological slideL27/4

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of three rigid cells. Neither of the outer cells appears to have been connected to other cells.

SizeMean length of cells 14µm

Country of originUSA

EF reference of specimen on palynological slideM24/1

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionA pair of joined cells.

SizeMean length of cells 12µm

Country of originUSA

EF reference of specimen on palynological slideM29/2

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionA pair of joined cells. The left hand cell does not appear to have been connected to other cells.

SizeMean length of cells 18µm

Country of originUSA

EF reference of specimen on palynological slideM39/1

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of 6 cells. Most cells display strong concentric fold pattern. There appears to be continuity across the folding patterns of the cells suggesting a possible series of connected inner bodies.

SizeMean length of cells 13µm

Country of originUSA

EF reference of specimen on palynological slideN23/4

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of 3 cells. All cells display strong concentric fold pattern.

SizeLengths of cells 11, 13 and 14µm

Country of originUSA

EF reference of specimen on palynological slideN25

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionPair of cells. Left hand cell has an invaginated or thickened left margin possible suggesting connection with other cells. Right cell seems to lack means of connection.

SizeMean length of cells 13µm

Country of originUSA

EF reference of specimen on palynological slideN34/4

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of 4 cells and a single off line cell possibly the remaining cell of a branch of cells. Cells distinctly overlap each other.

SizeMean length of cells 12µm

Country of originUSA

EF reference of specimen on palynological slideP32

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionSingle cell with a concentric to rectilinear pattern of folds.

SizeApprox. length 15 µm

Country of originUSA

EF reference of specimen on palynological slideS15

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionSingle cell with a concentric to rectilinear pattern of folds.

SizeApprox. length 15 µm

Country of originUSA

EF reference of specimen on palynological slideS33

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionSingle cell with a concentric pattern of folds.

SizeApprox. length 15 µm

Country of originUSA

EF reference of specimen on palynological slideS35

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionBarrel shaped cell. May have been part of a chain. Has two possible outer invaginations which may indicate site of two previous connections.

SizeApprox. length 15 µm

Country of originUSA

EF reference of specimen on palynological slideT12/2

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionA pair of joined cells. Both cells appear to lack an outward facing joining structure. These were probably never part of a larger chain.

SizeMean length of cells 13µm

Country of originUSA

EF reference of specimen on palynological slideT20

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionSingle cell with fold or invagination at the right margin.

SizeApprox. length 15 µm

Country of originUSA

EF reference of specimen on palynological slideT22/1

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionA pair of joined cells. Both cells appear to lack an outward facing joining structure. These were probably never part of a larger chain.

SizeMean length of cells 13µm

Country of originUSA

EF reference of specimen on palynological slideT36

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionSingle cell irregularly arranged fold

SizeApprox. length 15 µm

Country of originUSA

EF reference of specimen on palynological slideT7/1

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionSingle cell with a concentric to rectilinear pattern of folds.

SizeApprox. length 15 µm

Country of originUSA

EF reference of specimen on palynological slideU14

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionChain of ovoid cells

SizeLength of cells 15, 20 and 17 µm

Country of originUSA

EF reference of specimen on palynological slideY41/1

Species nameReduviasporonites catenulatus Wilson 1962

DescriptionDetail of specimen shown in image Flowerpt 66398_Y41_1. Chain of ovoid cells. The cells to the right both possibly contain slightly shrunken inner bodies. In the middle cell the inner body is attached to the inner surface of the terminal rims on both sides of the cell. Terminal rims are not well displayed between the two right hand cells. Both the inner body wall and the outer cell wall appear to be smooth and less than 1µm thick.

SizeLength of cells 15, 20 and 17 µm

Country of originUSA

EF reference of specimen on palynological slideY41/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell bent in the centre. Right hand part of the cell shows ‘striations’ in the outer cell wall orientated parallel to the long axis of the cell. These striations may be the result of shrinkage of the outer cell wall.

SizeLength of cell100µm approx.

Country of originUK

EF reference of specimen on palynological slideA27

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell. Outer cell surface is very finely, indistinctly granulate. Grana less than 0.5µm high and wide; similar distance apart. Inner cell material distinct; amorphous to granular in appearance.

SizeLength of cell 82µm

Country of originUK

EF reference of specimen on palynological slideA28

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionWell preserved cell with shrunken inner body. Distinct terminal rims.

SizeLength of cell 144µm

Country of originGreenland

EF reference of specimen on palynological slideA52/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image MFP12114_3_750_6_A52_3. Detail of inner body. Terminus of internal body detached from the inner surface of the outer wall.

SizeLength of cell 144µm

Country of originGreenland

EF reference of specimen on palynological slideA52/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image MFP12114_3_750_6_A52_3. Detail of terminal rim.

SizeLength of cell 144µm

Country of originGreenland

EF reference of specimen on palynological slideA52/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionLong filament with no terminal rims. May not be assignable to Reduviasporonites

SizeLength of cell 190µm approx.

Country of originGreenland

EF reference of specimen on palynological slideB21/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDark coloured (thick walled) specimen; displays very distinct inner and outer cell walls. Outer cell wall 1-1.5µm thick; outer surface very finely granulate (grana only just resolvable under oil x100). Faint shrinkage folds in the outer cell wall are present close to the termini. In these areas the terminal rims are ‘pinched’ i.e. much narrower than usual perhaps called by shrinkage. Inner cell wall 1 µm thick or less; appears smooth. Detached from the inner surface of the outer cell wall only close to the termini. Width of cavity between the two cell walls max. 3µm. Termini of the inner body still attached to the inner surface of the terminal rims. Small cavity at the terminus of the inner body visible on the right side of the cell. Cell material amorphous.

SizeLength of cell 71µm approx.

Country of originUK

EF reference of specimen on palynological slideB27

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSmall cell with sub-rectangular outline.

SizeLength of cell 40µm

Country of originUK

EF reference of specimen on palynological slideB31/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with one indistinct terminal rim

SizeCell length 53µm

Country of originUK

EF reference of specimen on palynological slideB34/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOuter wall of the cell translucent. Inner body distinct; attachment to the inner surface of the outer wall distinct on the left side.

SizeLength of cell 142µm

Country of originGreenland

EF reference of specimen on palynological slideB39/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in MFP12114_3_750_6_B39_3. Detail of inner body attachment to the inner part of the terminal rim. Left side

SizeLength of cell 142µm

Country of originGreenland

EF reference of specimen on palynological slideB39/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in MFP12114_3_750_6_B39_3. Detail of inner body attachment to the inner part of the terminal rim. Right side

SizeLength of cell 142µm

Country of originGreenland

EF reference of specimen on palynological slideB39/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSpindle-shaped cell with dark cell material.

SizeLength of cell 55µm

Country of originUK

EF reference of specimen on palynological slideB47/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionWell preserved cell with shrunken inner body. Distinct terminal rims. Shows the inner body remains attached to the inner part of the terminal rims.

SizeLength of cell 210µm

Country of originGreenland

EF reference of specimen on palynological slideB9

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image MFP12114_3_750_6_B9. Detail of well preserved cell with shrunken inner body; showing ‘striations’ in the outer wall.

SizeLength of cell 210µm

Country of originGreenland

EF reference of specimen on palynological slideB9

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell with shrunken inner body detached at both ends from the cell termini.

SizeLength of cell 135µm

Country of originChina

EF reference of specimen on palynological slideC12

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell

SizeLength of cell 95µm

Country of originChina

EF reference of specimen on palynological slideC20/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell

SizeLength of cell 95µm

Country of originChina

EF reference of specimen on palynological slideC20/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with circular outline; terminal rims distinct, inner body shrunken and cell material present. Cf. B. helbyi f. gregata Foster 1979

SizeLength of cell 85µm

Country of originChina

EF reference of specimen on palynological slideC20/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionTerminal rim partially detached suggesting incipient weakness in the outer wall just adjacent to the rim.

SizeLength of cell 125µm

Country of originChina

EF reference of specimen on palynological slideC26

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionVery small ovoid cell. Cell material amorphous and granular. Very distinct separation between inner body and cell wall. Outer cell wall 1-1.5µm thick; outer surface very finely granulate (grana only just resolvable under oil (x100)). Cell material confined by folds in the inner body.

SizeLength of cell 46µm.

Country of originUK

EF reference of specimen on palynological slideC29

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell

SizeCell length 73µm

Country of originUK

EF reference of specimen on palynological slideC29/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate specimen with sub-rectangular outline. Inner body appears adpressed to the inner surface of the cell.

SizeLength of cell 65µm.

Country of originSaudi Arabia

EF reference of specimen on palynological slideC33

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate specimen with sub-rectangular outline. Inner body appears adpressed to the inner surface of the cell.

SizeLength of cell 73µm.

Country of originSaudi Arabia

EF reference of specimen on palynological slideC38

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell lacking inner body.

SizeLength of cell 194µm

Country of originChina

EF reference of specimen on palynological slideC7/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShowing incipient weakness at the base of the terminal rim.

SizeLength of cell 115µm

Country of originChina

EF reference of specimen on palynological slideD17/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with one indistinct terminal rim and distinct cell material

SizeCell length 43µm

Country of originUK

EF reference of specimen on palynological slideD30/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of three cells which are elongate to ovoid in outline.

SizeMean length of cells 30µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideD31/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionFlask shaped cell.

SizeLength of cell 160µm

Country of originChina

EF reference of specimen on palynological slideD35

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image 6403380_NLD36_D35. Flask shaped cell. Detail shows that the inner body is missing.

SizeLength of cell 160µm

Country of originChina

EF reference of specimen on palynological slideD35

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell folded showing terminal rims.

SizeApprox. length of cell 100µm

Country of originChina

EF reference of specimen on palynological slideD38

Species nameReduviasporonites chalastus (Foster) Elsik 1999

Description2 cell chain with short rounded cells

SizeLengths of cells 57 and 60µm

Country of originUK

EF reference of specimen on palynological slideD38/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionVery large irregularly shaped cell with distinct inner body.

SizeLength of cell 147µm.

Country of originRussia

EF reference of specimen on palynological slideD41/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionTwo cells, both lacking inner bodies, connected by distinct terminal rims. Significantly the outer ends of both the cells have very poorly developed terminal rims.

SizeLength of cells 105 and 95µm.

Country of originRussia

EF reference of specimen on palynological slideD47

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell with rectilinear folds possibly in the inner body.

SizeLength of cell 130µm

Country of originAustralia

EF reference of specimen on palynological slideD51/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with irregular outline and a thin outer cell wall (0.5µm or less); contains a distinct, highly folded inner body. The inner body is in a partly shrunken state but is clearly attached to the inner surface of the terminal rims at both ends of the cell.

SizeLength of cell 90µm approx.

Country of originRussia

EF reference of specimen on palynological slideD53

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShort, slightly ovoid cell.

SizeLength of cell 95µm

Country of originGreenland

EF reference of specimen on palynological slideE16

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShort, slightly ovoid cell.

SizeLength of cell 105µm

Country of originGreenland

EF reference of specimen on palynological slideE17

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionWell preserved cell with shrunken inner body. Inner body in advanced stage of shrinkage, though attachment to inner part of the terminal rim still visible on the right side.

SizeLength of cell 120µm

Country of originGreenland

EF reference of specimen on palynological slideE24/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with circular outline and distinct terminal rims.

SizeLength of cell 85µm

Country of originChina

EF reference of specimen on palynological slideE29/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of attachment of two cells, showing folds in the connection area.

SizeLength of largest cell 125µm

Country of originGreenland

EF reference of specimen on palynological slideE35

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid specimen, inner body delineated by folds, indicating rectilinear outline.

SizeLength of cell 96µm

Country of originGreenland

EF reference of specimen on palynological slideE6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

Description?Ovoid specimen, inner body indistinct.

SizeLength of cell 105µm

Country of originGreenland

EF reference of specimen on palynological slideF23/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image 5031_Conisboro_F24_4_2. Cell with very constricted terminal rim. This specimen suggests that there are three wall layers in the cell which are only evident at the termini, and which, over the rest of the cell, are tightly adpressed. At the terminal rim a slight separation is evident.

SizeLength of cell 67µm.

Country of originUK

EF reference of specimen on palynological slideF24/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with very constricted terminal rim.

SizeLength of cell 67µm.

Country of originUK

EF reference of specimen on palynological slideF24/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionBent specimen with discontinuous terminal rim.

SizeLength of cell 100µm approx.

Country of originGreenland

EF reference of specimen on palynological slideF36/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionTwo detached cells. Right side of largest cell has distinct detachment of inner body from the cell wall at the terminus, forming a small cavity.

SizeLength of cells 71 and 54 µm

Country of originUK

EF reference of specimen on palynological slideF37/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of short ovoid cells

SizeMean length of cells 24µm.

Country of originSaudi Arabia

EF reference of specimen on palynological slideF43/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSlightly ovoid form

SizeLength of cell 68µm.

Country of originSaudi Arabia

EF reference of specimen on palynological slideF51

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionApproximately half of a large, well developed cell with a distinct terminal rim. A very shrunken and twisted inner body envelopes a mass of dense granulate cell material. The enveloping inner body forms a spindle shape. Terminus of inner body still attached to the inner surface of the terminal rim.

SizeLength of fragment 82µm

Country of originRussia

EF reference of specimen on palynological slideF58/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of the specimen shown in image 203.3_F58_1. Twisted inner body envelopes a mass of dense granulate cell material.

SizeLength of fragment 82µm

Country of originRussia

EF reference of specimen on palynological slideF58/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell with striations on the outer wall. Striations parallel to the long axis of the cell.

SizeLength of cell 100µm

Country of originChina

EF reference of specimen on palynological slideG23/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShort chain with diverse cells

SizeCell lengths 26, 64, 28, 61 µm

Country of originUK

EF reference of specimen on palynological slideG28/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of 3 cells each with rounded, dark amorphous mass of cell material.

SizeCell lengths 35, 40 and 39µm

Country of originUK

EF reference of specimen on palynological slideG32/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDamaged, poor specimen

SizeLength of cell fragment 47µm approx.

Country of originGreenland

EF reference of specimen on palynological slideH4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with distinct cell material

SizeCell length 55µm

Country of originUK

EF reference of specimen on palynological slideH40/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of cells.

SizeMean length of cells 100µm. Length of chain 330µm.

Country of originGreenland

EF reference of specimen on palynological slideH44/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell relatively light in colour due to the comprehensive collapse of the inner body. The very dark amorphous to granulate cell material is seen to be enveloped in the very thin, delicate inner body which is twisted and attached to the cell wall at the right terminal rim.

SizeLength of cell 55µm.

Country of originUK

EF reference of specimen on palynological slideH47/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionThree cells in a chain. Each cell with a very thin delicate outer cell wall and an inner body in various stages of shrinkage. Cell material appears to be present within the inner body.

SizeMean length of cells 100µm. Length of chain 330µm.

Country of originGreenland

EF reference of specimen on palynological slideJ21/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image MFP12114_3_750_6_J21_2. Detail of cells on the left side.

SizeMean length of cells 100µm. Length of chain 330µm.

Country of originGreenland

EF reference of specimen on palynological slideJ21/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with thin outer wall; inner body absent.

SizeLength of cell 115µm

Country of originGreenland

EF reference of specimen on palynological slideJ36/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell lacking inner body

SizeCell length 63µm

Country of originUK

EF reference of specimen on palynological slideJ39

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionWell developed terminal rims and cell material. Inner body believed to be adpressed and hence optically not distinct from the main cell wall.

SizeLength of cell 84µm

Country of originAustralia

EF reference of specimen on palynological slideJ46/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of three short ovoid cells. Cell to the left has three terminal rims.

SizeMean length of cells 35µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideK35/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image DILM_1_7827.9_K35_1. Chain of three short ovoid cells. Detail showing inner and outer cell walls. Outer cell wall approx. 1µm thick; surface smooth. Inner wall between 1 and 0.75µm thick; surface also smooth. Two walls closely adpressed.

SizeMean length of cells 35µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideK35/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell wall irregularly pitted.

SizeLength of cell 87µm.

Country of originSaudi Arabia

EF reference of specimen on palynological slideK40/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell with indistinct terminal rims

SizeLength of cell 53µm

Country of originAustralia

EF reference of specimen on palynological slideK46/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with constricted terminal rims

SizeLength of cell 83µm.

Country of originSaudi Arabia

EF reference of specimen on palynological slideK49/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDamaged, poor specimen

SizeLength of cell 150µm approx.

Country of originGreenland

EF reference of specimen on palynological slideK51/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCells with apparent oblique connection

SizeCell lengths 33 and 32µm

Country of originUK

EF reference of specimen on palynological slideL30

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionPair of joined cells, indicating nature of cell contact and advanced state of shrinkage of the inner body in both cells.

SizeLength of pictured cells 110 and 100µm

Country of originChina

EF reference of specimen on palynological slideL35

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell with indistinct terminal rims

SizeLength of cell 50µm

Country of originAustralia

EF reference of specimen on palynological slideL36/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionFlask shaped cell containing granular cell material.

SizeLength of cell 128µm.

Country of originRussia

EF reference of specimen on palynological slideL49/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of outer cell wall. Shows scabrous nature of the Moura specimens. Some evidence of pyrite deformation of the cell wall material is present.

SizeWidth of cell 47µm

Country of originAustralia

EF reference of specimen on palynological slideM42

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDamaged, poor specimen

SizeLength of cell 150µm approx.

Country of originGreenland

EF reference of specimen on palynological slideM8

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionThe two prominent dark cells pictured here have inner bodies which almost fill the cell cavity. The differing transparency of the cells illustrated may be due to natural variation in the thickness of one or both of the cell walls.

SizeCells with length between 48 and 28 µm.

Country of originAustria

EF reference of specimen on palynological slideN11/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of cells with masses of cell material. The cells all have intact inner bodies that almost fill the cell cavity.

SizeCells with maxis lengths of 45, 28 and 32µm

Country of originAustria

EF reference of specimen on palynological slideN12/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShowing a ‘three way cell’; each terminus with a terminal rim.

SizeApprox. length of cell 100µm

Country of originChina

EF reference of specimen on palynological slideN21/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionTwo flask-shaped cells

SizeCell lengths 61 and 70µm

Country of originUK

EF reference of specimen on palynological slideN26/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShort spindle shaped cell

SizeLength of cell 44µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideN28

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of small ovoid cells similar in morphology to the Flowerpot Formation specimens

SizeMean length of cells 25µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideN30

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell with indistinct ovoid inner body.

SizeLength of cell 90µm

Country of originAustralia

EF reference of specimen on palynological slideN31

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShowing the dispersion of the cell material within the cell cavity.

SizeLength of cell 150µm

Country of originChina

EF reference of specimen on palynological slideN31

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShows some of the range of cell size, shape and wall thickness within a single field of view. To the right are cells similar to those of the Greenland and Moura material. To the left are short ovoid cells.

SizeElongate cells length 55 and 45µm; ovoid cells have length between 29 and 45µm.

Country of originAustria

EF reference of specimen on palynological slideN31/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionThe cell displays a slightly shrunken inner body where the inner wall is no longer adpressed to the inner surface of the outer cell wall but has retreated a few microns. Note that the inner cell wall is still adpressed to the outer cell wall at the termini.

SizeMain cell has length 42µm

Country of originAustria

EF reference of specimen on palynological slideN33/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionNearly rectangular outline, short cell

SizeLength of cell 53µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideN37/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShowing a detached terminal rim. Plane of terminal face parallel to plane of slide.

SizeDiameter of the terminal rim 27 µm

Country of originChina

EF reference of specimen on palynological slideN40/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionNearly rectangular outline, short cell

SizeLength of cell 67µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideN41/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShort cell with rectangular outline and small masses of cell material

SizeLength of cell 45µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideN45/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell with indistinct ovoid inner body; the fold perpendicular to the long axis of the cell indicates one terminus of the inner body.

SizeLength of cell 110µm

Country of originAustralia

EF reference of specimen on palynological slideN46/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSlightly ovoid cell with indistinct inner body, though folds delineating its outline may be present. Terminal face turned towards the viewer.

SizeLength of cell 118µm

Country of originAustralia

EF reference of specimen on palynological slideN48/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionTwo adjacent cells; one with an inner body, one without.

SizeTwo main cells pictured have lengths of 45 and 43µm

Country of originAustria

EF reference of specimen on palynological slideN6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionThe middle cell displays a slightly shrunken inner body where the inner wall is no longer adpressed to the inner surface of the outer cell wall but has retreated a few microns. Note that the inner cell wall is still adpressed to the outer cell wall at the termini. The lack of a strong transparency difference between parts of the cell showing the inner and outer walls indicates that the inner body has a thin wall.

SizeTwo main cells pictured have max. axis lengths of 40 and 43µm

Country of originAustria

EF reference of specimen on palynological slideN8

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell with inner body in advanced state of shrinkage

SizeMain cell length 47µm

Country of originAustria

EF reference of specimen on palynological slideO16/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with constricted terminal rims

SizeLength of cell 70µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO42/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionPoorly developed ‘Y’ shaped cell

SizeLength of cell 61µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO42/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSpindle shaped cell

SizeLength of cell 49µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO44

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionVery small rounded cell

SizeLength of cell 32µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO45

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with rectangular outline

SizeLength of cell 69µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO45/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShort cell with rectangular outline

SizeLength of cell 45µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO45/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionVery poorly developed ‘Y’ shaped cell

SizeLength of cell 66µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO47

Species nameReduviasporonites chalastus (Foster) Elsik 1999

Description2 joined cells

SizeLength of cells 44 and 67µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO48/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionFlask shaped cell

SizeLength of cell 59µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO48/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionVery poorly developed ‘Y’ shaped cell

SizeLength of cell 61µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO48/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell with indistinct ovoid inner body; the folds perpendicular to the long axis of the cell indicate the termini of the inner body.

SizeLength of cell 129µm

Country of originAustralia

EF reference of specimen on palynological slideO48/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell

SizeLength of cell 87µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO48/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSmall ovoid cell with poorly developed terminal rims

SizeLength of cell 40µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO49

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSmall cell with rectangular outline

SizeLength of cell 59µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO49

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSlightly ovoid to rectangular cell with no distinct inner body or folds; also with discontinuous terminal rims.

SizeLength of cell 118µm

Country of originAustralia

EF reference of specimen on palynological slideO50

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of very short ovoid cells

SizeMean length of cells 25µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO51/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionFlask shaped cell with distinct inner and outer wall layers

SizeLength of cell 65µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideO54/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShows folds in the inner bodies of two adjacent elongate cells

SizeLength of largest cell pictured is 65µm

Country of originAustria

EF reference of specimen on palynological slideP14/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionMain cell pictured shows how shrinkage of the inner body occurs mainly in the middle parts of the cell. The inner body rarely detaches from the inner surfaces of the terminal rims unless shrinkage is very advanced.

SizeMain cell length 43µm

Country of originAustria

EF reference of specimen on palynological slideP15/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionEnd on view orientated normal to the terminal plane. Rim appears rectilinear in form, thickening may be incipient or as a result of folding. No pore or aperture visible in the terminal face. Terminal face planar.

SizeWidth of terminal face 20µm

Country of originAustralia

EF reference of specimen on palynological slideP33/4

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSlightly ovoid cell with partially shrunken inner body.

SizeLength of cell 115µm

Country of originAustralia

EF reference of specimen on palynological slideP36

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of three cells, each showing shrunken inner body with varying levels of attachment to the termini of the outer wall.

SizeLength of pictured cells 115, 100 and 90 µm

Country of originChina

EF reference of specimen on palynological slideP5/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image 6403380_NLD36_P5_1. Chain of three cells. Right side of chain. Illustrates attachment of the inner body to the termini of the outer wall. A helical twist may be present in the inner body of the right cell. Possibly such a twist is responsible for common diagonal folds.

SizeLength of pictured cells 115, 100 and 90 µm

Country of originChina

EF reference of specimen on palynological slideP5/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image 6403380_NLD36_P5_1. Chain of three cells. Left side of chain. Illustrates tenuous attachment of the inner body to the termini of the outer wall.

SizeLength of pictured cells 115, 100 and 90 µm

Country of originChina

EF reference of specimen on palynological slideP5/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSlightly ovoid cell with inner body delineated by folds.

SizeLength of cell 92µm

Country of originAustralia

EF reference of specimen on palynological slideP52/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionFlask shaped cell

SizeLength of cell 79µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideQ30/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSlightly ovoid cell with distinct diagonal fold. Cf. diagonal furrow of Foster (1979).

SizeLength of cell 100µm

Country of originAustralia

EF reference of specimen on palynological slideR48/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell with partially shrunken inner body.

SizeLength of cell 120µm

Country of originAustralia

EF reference of specimen on palynological slideS36

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell relatively light in colour due to the comprehensive collapse of the inner body. The very dark amorphous to granulate cell material is seen to be enveloped in the very thin, delicate inner body which is twisted and attached to the cell wall at both ends. At the right is a strand of material which may represent the shrunken inner body of a previously adjacent cell.

SizeLength of cell 50µm.

Country of originUK

EF reference of specimen on palynological slideS39/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionRectangular, elongate cell with indistinct inner body.

SizeLength of cell 130µm

Country of originAustralia

EF reference of specimen on palynological slideS44

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDiscontinuous terminal rim present; inner body not apparent.

SizeLength of cell 62µm

Country of originAustralia

EF reference of specimen on palynological slideSingle grain mount

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDiscontinuous terminal rim present; inner body not apparent. Left side shows incipient weakness of the outer wall shown by separation of the rim from the rest of the wall. Cell material distinct, granular in appearance.

SizeLength of cell 56µm

Country of originAustralia

EF reference of specimen on palynological slideSingle grain mount

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image BILLA_262m_SGM_3_2. Discontinuous terminal rim present; incipient weakness of the outer wall shown by separation of the rim from the rest of the wall

SizeLength of cell 83µm

Country of originAustralia

EF reference of specimen on palynological slideSingle grain mount

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDiscontinuous terminal rim present; incipient weakness of the outer wall shown by separation of the rim from the rest of the wall

SizeLength of cell 83µm

Country of originAustralia

EF reference of specimen on palynological slideSingle grain mount

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDiscontinuous terminal rim present; incipient weakness of the outer wall shown by separation of the rim from the rest of the wall

SizeLength of cell 57µm

Country of originAustralia

EF reference of specimen on palynological slideSingle grain mount

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDiscontinuous terminal rim present

SizeLength of cell 99µm

Country of originAustralia

EF reference of specimen on palynological slideSingle grain mount

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image BILLA_262m_SGM_4. Showing granular cell material.

SizeLength of cell 99µm

Country of originAustralia

EF reference of specimen on palynological slideSingle grain mount

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionTo the right of the picture the inner body is visible, closely adpressed to the inner surface of the cell wall. Granular cell material present.

SizeLength of cell 102µm

Country of originAustralia

EF reference of specimen on palynological slideSingle grain mount

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen shown in image BILLA_262m_SGM_5. Inner body can be seen folded back approximately half way along the cell. This may account for lighter colour in the left side of the cell.

SizeLength of cell 102µm

Country of originAustralia

EF reference of specimen on palynological slideSingle grain mount

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen showing a complete cell joined to a partial cell that has broken at the weakness at the base of the terminal rim. Illustrates the fine suture at the join between the adjacent terminal rims.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of three cells with deeply concave compressional shape.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen showing a complete cell joined to a partial cell. Longitudinal tears in the outer cell wall are present.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of specimen above. Wall of inner body may be visible within the longitudinal tear.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell with well developed terminal rim.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of two cells. Left cell has a diagonal fold due to twisting. Illustrates the rigidity of the terminal rims in comparison with the flaccidity of the otherwise unsupported cell wall.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionThis specimen illustrates the characteristic ‘Christmas cracker’ morphology of cell chains after vigorous ultrasound treatment. The central cell shown is intact but the two adjacent cells are broken at the base of their respective terminal rims. This illustrates the comparative strength of the bonds between terminal rims.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCrack in cell wall. Illustrates the lack of a clear inner body cell wall and, possibly, that in this specimen, the inner body is tightly adpressed to the main cell wall.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of two cells. Left cell has ‘Christmas cracker’ morphology.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionLarge, elongate cell.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of two cells, left cell broken. In overall size (right cell less than 20µm in length) and morphology, these cells are similar to those described by Wilson (1962) and assigned to R. catenulatus.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionThis specimen illustrates the characteristic ‘Christmas cracker’ morphology of cell chains after vigorous ultrasound treatment. The central cell shown is intact but the two adjacent cells are broken at the base of their respective terminal rims. This illustrates the comparative strength of the bonds between terminal rims.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOne intact cell with adjacent partial cells. Right side shows detachment of two terminal rims.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of detachment of two terminal rims.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with an oval outline, probably originally ovoid in shape with adjacent partial cell. Right side shows a break in the cell wall.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of the above specimen (right side) showing the inner surface of ?one of the cell walls.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of the above specimen (left side).

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionThis specimen illustrates the characteristic ‘Christmas cracker’ morphology. On the right the two tightly connected terminal rims can be seen.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell with terminal rim turned toward the viewer.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of the above specimen (left side) with terminal rim turned toward the viewer.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionTwo ?recently detached cells. Right cell shows possible development of a third terminal rim.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of the above specimen (upper part) with terminal rim.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of terminal rim. Central smooth area may correspond to central ‘boss’ of image ‘DILM_1_7827.9_Stub6_2.jpg’ from Saudi Arabia sample DILM-1 7827.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of two tightly connected cells. Left cell in addition shows connection to the remains of an adjacent cell.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of the above chain (left side).

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOblique image of specimen shown in image ‘6403434_2_T1_Stub1_15.tif’ (Austria T1 6403434 2 Stub 1). Shows 3D shape of the compressed cell. The extent and pattern of folding indicates that the cell was originally ovoid in shape.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOblique image of specimen shown in image ‘6403434_2_T1_Stub1_15.tif’ (Austria T1 6403434 2 Stub 1). Detail.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOblique image of specimen shown in image ‘6403434_2_T1_Stub1_15.tif’ (Austria T1 6403434 2 Stub 1). Detail.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOblique image of specimen shown in image ‘6403434_2_T1_Stub1_15.tif’ (Austria T1 6403434 2 Stub 1). Detail illustrates the thickness (approx. 0.75µm), and apparently homogeneous nature of the cell wall. Area within presumably represents the internal cavity of the cell. The inner surface of the wall illustrated appears to be striated.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOblique image of specimens.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionPoorly preserved elongate cell. Terminal rim to the left has poorly developed raised circular boss approximately 3 µm wide

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 12

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionPoorly preserved elongate cell. Terminal rim detail.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 12

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of 6 cells. Several of the cells have partially collapsed walls between the terminal rims suggesting that the latter are the most rigid part of the cell structure.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 12

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of terminal rim

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 12

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionThree way cell and ?recently detached elongate cell. Left terminal rim has poorly developed raised circular boss approximately 2 µm wide

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 12

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of terminal rim of elongate cell in the above.

SizeSee scale bar

Country of originAustria

EF reference of specimen on palynological slideStub 12

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionFlask shaped cell with well developed left terminal rim. Specimen has corroded outer cell wall.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionPair of joined cells.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionPair of joined cells. Detail of the join between the cells. Join is marked by a fine suture.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionLarge rounded cell with well developed terminal rims. Specimen has corroded outer cell wall.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionRounded cell with well developed terminal rims. Specimen has corroded outer cell wall and prominent longitudinal fold.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionRounded cell with well developed terminal rims. Detail of left terminal rim.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionRounded cell with well developed terminal rims.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of terminal rim. Fragment of previously attached cell still present.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell with well developed diagonal fold.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionElongate cell with well developed diagonal fold. The right terminal rim is partially detached along the incipient weakness in the cell wall at the base of the terminal rim. The left terminal rim is very well developed.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of left terminal rim. Area enclosed has a hole in the outer cell wall, probably too regular to be a pore or aperture.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCell with well developed longitudinal fold. This and other specimens indicate a cell wall corrosion form that is similar in appearance to ‘exfoliation’. That the wall appears to ‘flake off’ in this way suggests that it may be lamellate in structure.

SizeSee scale bar

Country of originChina

EF reference of specimen on palynological slideStub 13

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSmall rounded cell with diagonal fold possibly caused by twisting movement.

SizeSee scale bar

Country of originSaudi Arabia

EF reference of specimen on palynological slideStub 6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of terminal rim showing raised rim area and enclosed central, circular depressed area. The central part of the depressed area has a raised circular boss approximately 2 µm wide.

SizeSee scale bar

Country of originSaudi Arabia

EF reference of specimen on palynological slideStub 6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionThree way cell. Upper terminal rim is slightly folded over.

SizeSee scale bar

Country of originSaudi Arabia

EF reference of specimen on palynological slideStub 6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionRight side illustrates tear in the wall just at the base of the terminal rim. Suggests as do other light microscope images, that there is an incipient weakness at the base of the terminal rim.

SizeSee scale bar

Country of originSaudi Arabia

EF reference of specimen on palynological slideStub 6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of 5 cells. Several of the cells have partially collapsed walls between the terminal rims, suggesting that the latter are the most rigid part of the cell structure. The second cell from the right is a 3 way cell.

SizeSee scale bar

Country of originSaudi Arabia

EF reference of specimen on palynological slideStub 6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain of 5 cells above. Detail of terminal rim.

SizeSee scale bar

Country of originSaudi Arabia

EF reference of specimen on palynological slideStub 6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionSpindle shaped cell with tear in the outer wall.

SizeSee scale bar

Country of originSaudi Arabia

EF reference of specimen on palynological slideStub 6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetail of outer cell wall tear. Shows the outer wall thickness (approx. 0.5µm) and the outer surface of the inner wall beneath.

SizeSee scale bar

Country of originSaudi Arabia

EF reference of specimen on palynological slideStub 6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionDetailed close up of outer cell wall tear.

SizeSee scale bar

Country of originSaudi Arabia

EF reference of specimen on palynological slideStub 6

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionRounded cell with poorly developed terminal rim on the left. Specimen has corroded outer cell wall.

SizeSee scale bar

Country of originAustralia

EF reference of specimen on palynological slideStub 8

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionRounded cell; no distinct terminal rims. Specimen has corroded outer cell wall.

SizeSee scale bar

Country of originAustralia

EF reference of specimen on palynological slideStub 8

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionRounded cell with poorly developed terminal rim on the left. Specimen has corroded outer cell wall.

SizeSee scale bar

Country of originAustralia

EF reference of specimen on palynological slideStub 8

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionLong cell with semi transparent outer cell wall

SizeLength of cell 100µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideT37/2

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionTwo joined ovoid cells. Cf. B. helbyi f. gregata

SizeMean length of cells 45µm.

Country of originUK

EF reference of specimen on palynological slideT44/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionShrunken and twisted inner body envelopes a mass of dense granulate cell material. Mass and enveloping inner body forms a spindle shape. Termini of inner body still attached to the inner surfaces of the terminal rims.

SizeLength of cell 75µm.

Country of originRussia

EF reference of specimen on palynological slideT55/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell with rectilinear folds possibly in the inner body wall. Cf. diagonal furrow of Foster (1979).

SizeLength of cell 120µm

Country of originAustralia

EF reference of specimen on palynological slideU42

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionGroup of ovoid cells with regular folds indicating approx. position and shape of the inner body. Cells joined where termini of inner body reach inner surface of the outer body.

SizeApprox. mean length of cells 80µm

Country of originAustralia

EF reference of specimen on palynological slideU46/3

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionCells with circular outline.

SizeLength of cells 53 and 50µm.

Country of originUK

EF reference of specimen on palynological slideU51/1

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionFlask and spindle shaped cells joined

SizeLength of cells 57 and 46µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideW33

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionOvoid cell with rectilinear folds possibly in the inner body wall. Cf. diagonal furrow of Foster (1979).

SizeLength of cell 120µm

Country of originAustralia

EF reference of specimen on palynological slideY47

Species nameReduviasporonites chalastus (Foster) Elsik 1999

DescriptionChain with apparent pendant inner body still attached to the adjacent cell

SizeMean length of cells 45µm

Country of originSaudi Arabia

EF reference of specimen on palynological slideY48