Occurrences by Geologic Period
Temporal Range
Geographic Distribution
Classification Summary
By Phylum
| Pteridophyta | 1,000 |
By Class
| Polypodiopsida | 468 |
| Lycopsida | 199 |
| Pteridopsida | 156 |
| NO_CLASS_SPECIFIED | 92 |
| Pteropsida | 76 |
By Environment
No data.
| Pteridophyta | 1,000 |
| Polypodiopsida | 468 |
| Lycopsida | 199 |
| Pteridopsida | 156 |
| NO_CLASS_SPECIFIED | 92 |
| Pteropsida | 76 |
No data.