Genus Microthyrium
- Species total:
- 3
- Age range:
- 90.33 - 1.2 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Microthyrium microscopicum | Late Cretaceous | Late Cretaceous |
|
| Microthyrium sp | Late Miocene | Early Pleistocene |
|
| Microthyrium type | Early Miocene | Early Miocene |
|