Micrhystridium |
Micrhystridium ambiguum
|
England |
Kimmeridgian |
|
Micrhystridium |
Micrhystridium ambiguum
|
France |
Bathonian |
|
Micrhystridium |
Micrhystridium ambiguum
|
Germany |
Kimmeridgian |
|
Micrhystridium |
Micrhystridium ambiguum
|
Bulgaria |
Oxfordian |
|
Micrhystridium |
Micrhystridium arachnoides
|
England |
Sinemurian |
|
Micrhystridium |
Micrhystridium arachnoides
|
France |
Bathonian |
|
Micrhystridium |
Micrhystridium arachnoides
|
Germany |
Toarcian |
|
Micrhystridium |
Micrhystridium bigotii
|
France |
Bajocian |
|
Micrhystridium |
Micrhystridium bigotii
|
France |
Bathonian |
|
Micrhystridium |
Micrhystridium bigotii
|
France |
Late Bathonian |
Early Callovian |
Micrhystridium |
Micrhystridium bigotii
|
Germany |
Hettangian |
|
Micrhystridium |
Micrhystridium bigotii
|
Germany |
Sinemurian |
|
Micrhystridium |
Micrhystridium bigotii
|
Germany |
Pliensbachian |
|
Micrhystridium |
Micrhystridium bigotii
|
Germany |
Toarcian |
|
Micrhystridium |
Micrhystridium biornatum
|
France |
Bajocian |
|
Micrhystridium |
Micrhystridium castaninum
|
France |
Bajocian |
|
Micrhystridium |
Micrhystridium castaninum
|
France |
Bathonian |
|