Genus Micrhystridium
- Species total:
- 558
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Micrhystridium nebulosum | Middle Cambrian | Middle Cambrian |
|
| Micrhystridium nemuroense | Maastrichtian | Danian |
|
| Micrhystridium ningqiangense | Sinian | Sinian |
|
| Micrhystridium notatum | Precambriam | Cambrian |
|
| Micrhystridium obscurum | Precambriam | Cambrian |
|
| Micrhystridium obsoletum | Middle Frasnian | Late Frasnian |
|
| Micrhystridium oceaniae | Llandoverian | Lutetian |
|
| Micrhystridium octospinosum | Ordovician | Early Frasnian |
|
| Micrhystridium octospinum | Late Devonian | Late Devonian |
|
| Micrhystridium oligarifmum | Silurian | Silurian |
|
| Micrhystridium oligarifmus | Silurian | Silurian |
|
| Micrhystridium oligum | Early Cambrian | Middle Cambrian |
|
| Micrhystridium operosum | Paleozoic | Early Pontian |
|
| Micrhystridium ordense | Early Cambrian | Early Cambrian |
|
| Micrhystridium ordensis | Early Cambrian | Early Cambrian |
|
| Micrhystridium ornatum | Vendian | Ludlovian |
|
| Micrhystridium ovale | Tremadocian | Tremadocian |
|