Micrhystridium |
Micrhystridium notatum
|
Poland |
Early Cambrian |
|
Micrhystridium |
Micrhystridium obscurum
|
Poland |
Middle Cambrian |
|
Micrhystridium |
Micrhystridium oceaniae
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium oceaniae
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium octospinosum
|
Canada(Alberta) |
Late Devonian |
|
Micrhystridium |
Micrhystridium oligarifmum
|
USSR |
Silurian |
|
Micrhystridium |
Micrhystridium oligum
|
USSR(Lithuanian SSR) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium operosum
|
France |
Late Cretaceous |
|
Micrhystridium |
Micrhystridium ordense
|
Scotland |
Early Cambrian |
|
Micrhystridium |
Micrhystridium ornatum
|
Belgium |
Silurian |
|
Micrhystridium |
Micrhystridium ovale
|
Canada(Alberta) |
Jurassic |
|
Micrhystridium |
Micrhystridium pachydermum
|
Australia(NSW) |
Paleocene |
Early Eocene |
Micrhystridium |
Micrhystridium pakistanense
|
Pakistan |
Late Permian |
|
Micrhystridium |
Micrhystridium pallidum
|
USSR(Estonian SSR) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium pallidum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium pandum
|
Ohio |
Late Devonian |
|
Micrhystridium |
Micrhystridium papillatum
|
USSR(Belorussian SSR) |
Early Ordovician |
|