Micrhystridium |
Micrhystridium heteracanthum
|
Belgium |
Early Cambrian |
|
Micrhystridium |
Micrhystridium heteracanthum
|
France |
Late Cretaceous |
|
Micrhystridium |
Micrhystridium heterospinosum
|
USSR(Lithuanian SSR) |
Early Cambrian |
|
Micrhystridium |
Micrhystridium heurckii
|
Belgium |
Late Devonian |
|
Micrhystridium |
Micrhystridium horridulum
|
France(Ille-et-Vilaine) |
Late Devonian |
|
Micrhystridium |
Micrhystridium hydraferum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium hystricosum
|
Australia(W.Australia) |
Middle Devonian |
Late Devonian |
Micrhystridium |
Micrhystridium imitatum
|
France(Herault) |
Wenlockian |
|
Micrhystridium |
Micrhystridium inaffectilumium
|
New York |
Wenlockian |
|
Micrhystridium |
Micrhystridium inaffectum
|
Australia(W.Australia) |
Devonian |
|
Micrhystridium |
Micrhystridium incertum
|
France(Finistere) |
Ordovician |
|
Micrhystridium |
Micrhystridium inconspicuum
|
France |
Middle Ordovician |
|
Micrhystridium |
Micrhystridium inconspicuum
|
France |
Late Cretaceous |
|
Micrhystridium |
Micrhystridium inconspicuum
|
France |
Middle Ordovician |
|
Micrhystridium |
Micrhystridium inconspicuum
|
France |
Middle Jurassic |
|
Micrhystridium |
Micrhystridium inconspicuum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium inconspicuum
|
France |
Late Cretaceous |
|