Registration No. : |
Kdst 6174 . |
Type : |
Not Designated a Type |
Identifications : |
New: |
Plants: Gymnospermophyta |
Alethopteris sp |
Old: |
Plants: Gymnospermophyta |
Alethopteris [grandifolia Newberry] |
Old: |
Plants: Gymnospermophyta |
Alethopteris valida Boulay |
Locality : |
Sharon - Pennsylvania. |
Grid Reference : |
Not available
|
Country : |
United States |
1:50K map : |
|
|
Chronostratigraphy : |
Tournaisian Age
— Visean Age
|
Lithostratigraphy : |
CARBONIFEROUS LIMESTONE SUPERGROUP |
Collector / Donor : |
Available from curator
|
References : |
Crookall 1955 Mem Geol Surv Palaeontology Vol IV Part 1 |