Occurrences by Geologic Period
Temporal Range
Geographic Distribution
Classification Summary
By Phylum
| Gymnospermae | 1,000 |
By Class
| NO_CLASS_SPECIFIED | 870 |
| Lyginopteridopsida | 107 |
| Cordaitopsida | 13 |
| Pteridospermopsida | 2 |
| Lagenospermopsida | 1 |
By Environment
No data.