Genus Micrhystridium
- Species total:
- 558
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Micrhystridium kufferathii | Cambrian | Early Famennian |
|
| Micrhystridium perlevis | Early Cambrian | Early Cambrian |
|
| Micrhystridium flexispinosum | Early Cambrian | Early Cambrian |
|
| Micrhystridium biornatum | Paleozoic | Early Arenigian |
|
| Micrhystridium operosum | Paleozoic | Early Pontian |
|
| Micrhystridium sp.3 | Early Cambrian | Aalenian |
|
| Micrhystridium parvispinum | Paleozoic | Lutetian |
|
| Micrhystridium heterospinosum | Early Cambrian | Early Cambrian |
|
| Micrhystridium fragile | Paleozoic | Pleistocene |
|
| Micrhystridium bigotii | Paleozoic | Early Oligocene |
|
| Micrhystridium duplex | Cambrian | Cambrian |
|
| Micrhystridium rhopalicum | Paleozoic | Early Callovian |
|
| Micrhystridium sp. Volk.,1974 | Early Cambrian | Aalenian |
|
| Micrhystridium parinconspicuum | Paleozoic | Early Famennian |
|
| Micrhystridium robustum | Early Paleozoic | Middle Emsian |
|
| Micrhystridium ambiguum | Paleozoic | Middle Oligocene |
|
| Micrhystridium bacilliferum | Paleozoic | Middle Miocene |
|