Genus Monocolpate forms
- Species total:
- 4
- Age range:
- 280 - 76 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Monocolpate forms | Sakmarian | Tatarian |
|
| Monocolpate forms incertae sedis | Bajocian | Bajocian |
|
| Monocolpate forms macroreticulate | Middle Santonian | Late Santonian |
|
| Monocolpate forms sp | Sakmarian | Sakmarian |
|