Computer Code: |
GMB |
Preferred Map Code: |
R2a1 |
Status Code: |
Index Level |
Age range: |
Marsdenian Substage (CZ)
— Marsdenian Substage (CZ) |
Lithological Description: |
[Duplicate: use R2A1] |
Definition of Lower Boundary: |
none recorded or not applicable
|
Definition of Upper Boundary: |
none recorded or not applicable
|
Thickness: |
none recorded or not applicable
|
Geographical Limits: |
none recorded or not applicable
|
Parent Unit: |
none recorded or not applicable
|
Previous Name(s): |
Reticuloceras Gracile Marine Band [Obsolete Name and Code: Use GMB, GRMB, R2A1]
(-4678)
|
Alternative Name(s): |
Bilinguites gracilis Marine Band
|
Stratotypes: |
none recorded or not applicable |
Reference(s): |
none recorded or not applicable |
1:50K maps on which the lithostratigraphical unit is found, and map code used: |
E086
E078
E077
E142
E059
|