| 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 |
