Genus Micrhystridium
- Species total:
- 558
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Micrhystridium octospinosum | Ordovician | Early Frasnian |
|
| Micrhystridium venustum | Late Devonian | Middle Frasnian |
|
| Micrhystridium alpernii | Llandoverian | Frasnian |
|
| Micrhystridium obsoletum | Middle Frasnian | Late Frasnian |
|
| Micrhystridium lejeunei | Silurian | Frasnian |
|
| Micrhystridium parvum | Vendian | Early Famennian |
|
| Micrhystridium castaneoideum | Late Ludlovian | Early Famennian |
|
| Micrhystridium chattonii | Late Ordovician | Early Famennian |
|
| Micrhystridium kufferathii | Cambrian | Early Famennian |
|
| Micrhystridium parinconspicuum | Paleozoic | Early Famennian |
|
| Micrhystridium parcheri | Frasnian | Early Famennian |
|
| Micrhystridium echinosum | Frasnian | Early Famennian |
|
| Micrhystridium maillieuxii | Late Devonian | Early Famennian |
|
| Micrhystridium heurckii | Silurian | Early Famennian |
|
| Micrhystridium parveroquesii | Early Ordovician | Late Devonian |
|
| Micrhystridium hystricosum | Middle Devonian | Late Devonian |
|
| Micrhystridium vigintispinum | Llandoverian | Strunian |
|