Genus Form-c
- Species total:
- 4
- Age range:
- 1600 - 17.5 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Form-c sp | Late Proterozoic | Ottnangian |
|
| Form-c sp.1 | Cenomanian | Coniacian |
|
| Form-c sp.2 | Cenomanian | Coniacian |
|
| Form-c sp.3 | Cenomanian | Coniacian |
|