Genus Micrhystridium
- Species total:
- 558
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Micrhystridium sanyanum | Paleocene | Paleocene |
|
| Micrhystridium sarjeantii | Cretaceous | Cretaceous |
|
| Micrhystridium scutospinum | Paleozoic | Bathonian |
|
| Micrhystridium sedecimspinosum | Late Devonian | Late Devonian |
|
| Micrhystridium semiapertum | Middle Cambrian | Middle Cambrian |
|
| Micrhystridium seminudum | Paleocene | Paleocene |
|
| Micrhystridium semitabulatum | Liassic | Toarcian |
|
| Micrhystridium sericum | Early Llandoverian | Givetian |
|
| Micrhystridium setasessitante | Early Paleozoic | Early Landenian |
|
| Micrhystridium setulerum | Sinian | Sinian |
|
| Micrhystridium shinetonense | Cambrian | Early Campanian |
|
| Micrhystridium siimegense | Valanginian | Aptian |
|
| Micrhystridium simplex | Llandoverian | Early Mississippian |
|
| Micrhystridium singulare | Paleozoic | Maastrichtian |
|
| Micrhystridium sinuosum | Late Cambrian | Late Cambrian |
|
| Micrhystridium sitholeyi | Precambriam | Cambrian |
|
| Micrhystridium smedsbiense | Middle Ordovician | Middle Ordovician |
|