Genus Micrhystridium
- Species total:
- 558
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Micrhystridium assuetum | Silurian | Silurian |
|
| Micrhystridium aster | Rhaetian | Middle Cretaceous |
|
| Micrhystridium astrum | Late Devonian | Late Devonian |
|
| Micrhystridium asymmetricum | Late Devonian | Early Mississippian |
|
| Micrhystridium bacilliferum | Paleozoic | Middle Miocene |
|
| Micrhystridium baculiferum | Miocene | Miocene |
|
| Micrhystridium bahamense | Berriasian | Valanginian |
|
| Micrhystridium balmei | Early Scythian | Carnian |
|
| Micrhystridium bernardinae | Early Paleozoic | Emsian |
|
| Micrhystridium bifidum | Aptian | Campanian |
|
| Micrhystridium bifurcatum | Eocene | Eocene |
|
| Micrhystridium bigotii | Paleozoic | Early Oligocene |
|
| Micrhystridium biornatum | Paleozoic | Early Arenigian |
|
| Micrhystridium bistchoense | Cambrian | Late Zechstein |
|
| Micrhystridium breneli | Early Triassic | Early Triassic |
|
| Micrhystridium breve | Permian | Early Landenian |
|
| Micrhystridium breviacanthum | Middle Cambrian | Middle Cambrian |
|