Micrhystridium |
Micrhystridium kufferathii
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium lagynophorum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium lejeunei
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium leptothrix
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium lucasii
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium mastigophorum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium mendax
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium micropolygonale
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium micropolygonale
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium multispinosum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium nannacanthum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium oceaniae
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium octospinosum
|
Canada(Alberta) |
Late Devonian |
|
Micrhystridium |
Micrhystridium operosum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium ornatum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium pachydermum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium parinconspicuum
|
Nd |
Nd |
|