Genus Micrhystridium
- Species total:
- 558
- Age range:
- 4100 - 0 MA (obsolete dating)
- IRMNG:
- find
| Name | From | To | Age range |
|---|---|---|---|
| Micrhystridium heurckii | Silurian | Early Famennian |
|
| Micrhystridium hirticulum | Richmondian | Richmondian |
|
| Micrhystridium horridulum | Gedinnian | Early Emsian |
|
| Micrhystridium hydraferum | Frasnian | Frasnian |
|
| Micrhystridium hystricosum | Middle Devonian | Late Devonian |
|
| Micrhystridium imitatum | Paleozoic | Downtonian |
|
| Micrhystridium inaffectilumium | Llandoverian | Wenlockian |
|
| Micrhystridium inaffectum | Devonian | Devonian |
|
| Micrhystridium incertum | Paleozoic | Silurian |
|
| Micrhystridium inconspicuum | Early Paleozoic | Eocene |
|
| Micrhystridium inflatum | Early Gothlandian | Downtonian |
|
| Micrhystridium insuetum | Late Precambrian | Cambrian |
|
| Micrhystridium intonsurans | Early Wenlockian | Early Wenlockian |
|
| Micrhystridium intromittum | Keuper | Liassic |
|
| Micrhystridium inusitatum | Senecan | Tournaisian |
|
| Micrhystridium irevikenense | Early Wenlockian | Early Wenlockian |
|
| Micrhystridium jekhowskyi | Early Scythian | Early Toarcian |
|