Micrhystridium |
Micrhystridium curvatum
|
USSR(Estonian SSR) |
Late Ordovician |
|
Micrhystridium |
Micrhystridium dangeardii
|
Belgium |
Late Devonian |
|
Micrhystridium |
Micrhystridium deconinckii
|
Belgium |
Late Devonian |
|
Micrhystridium |
Micrhystridium deflandrei
|
France(Normandie) |
Middle Jurassic |
|
Micrhystridium |
Micrhystridium deflexum
|
China(Sinkiang Uighur) |
Late Eocene |
|
Micrhystridium |
Micrhystridium densispinum
|
France(Poitou) |
Middle Jurassic |
|
Micrhystridium |
Micrhystridium densum
|
Japan(Kyushu I.) |
Pleistocene |
|
Micrhystridium |
Micrhystridium deunffii
|
Canada |
Early Triassic |
|
Micrhystridium |
Micrhystridium dictyophorum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium didymum
|
China |
Early Ordovician |
|
Micrhystridium |
Micrhystridium digitatum
|
USSR(Estonian SSR) |
Middle Ordovician |
Late Ordovician |
Micrhystridium |
Micrhystridium diornamentum
|
England |
Early Ordovician |
|
Micrhystridium |
Micrhystridium dissimilare
|
Poland |
Early Cambrian |
|
Micrhystridium |
Micrhystridium dunnispinum
|
India(Andaman) |
Oligocene |
|
Micrhystridium |
Micrhystridium duodeciaster
|
Canada(Alberta) |
Late Devonian |
|
Micrhystridium |
Micrhystridium duplex
|
USSR(Siberia) |
Cambrian |
|
Micrhystridium |
Micrhystridium duvernayense
|
Canada(Alberta) |
Late Devonian |
|