Genus Micrhystridium
- Species total:
- 558
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Micrhystridium fissile | Tarannon | Tarannon |
|
| Micrhystridium densum | Pleistocene | Pleistocene |
|
| Micrhystridium trispinosum | Nd | Nd |
|
| Micrhystridium sp. Gitm.& Sarj.,1972 | Jurassic | Jurassic |
|
| Micrhystridium fucosum | Late Cretaceous | Late Cretaceous |
|
| Micrhystridium ovale | Tremadocian | Tremadocian |
|
| Micrhystridium canadense | Arenigian | Arenigian |
|
| Micrhystridium sp.A3 | Nd | Nd |
|
| Micrhystridium acinaciformum | Wenlockian | Wenlockian |
|
| Micrhystridium gilsonii | Holocene | Holocene |
|
| Micrhystridium multispinosum | Paleozoic | Paleozoic |
|
| Micrhystridium clavum | Late Devonian | Late Devonian |
|
| Micrhystridium debilispinum | Permian | Permian |
|
| Micrhystridium formae i | Late Permian | Late Permian |
|