Lecithodinium |
Lecithodinium ciliatum
|
Atlantic Ocean |
Early Cretaceous |
|
Lecithodinium |
Lecithodinium goldwyerense
|
Australia(W.Australia) |
Early Ordovician |
|
Lecithodinium |
Lecithodinium granulatum
|
USSR(Estonian SSR) |
Middle Ordovician |
|
Lecithodinium |
Lecithodinium minimum
|
USSR(Estonian SSR) |
Middle Ordovician |
Early Gothlandian |
Lophosphaeridium |
Lophosphaeridium
|
USSR(Pre-Baltic) |
Early Ordovician |
|
Lophosphaeridium |
Lophosphaeridium citrinum
|
England(Shropshire) |
Early Gothlandian |
|
Lophosphaeridium |
Lophosphaeridium rarum
|
USSR |
Early Ordovician |
|
Micrhystridium |
Micrhystridium
|
France(Paris Basin) |
Senonian |
|
Micrhystridium |
Micrhystridium acanthaceum
|
USSR(Belorussian SSR) |
Early Ordovician |
|
Micrhystridium |
Micrhystridium accretum
|
Atlantic Ocean |
Early Cretaceous |
|
Micrhystridium |
Micrhystridium acerbum
|
Belgium |
Early Gothlandian |
|
Micrhystridium |
Micrhystridium acinaciformum
|
Nd |
Nd |
|
Micrhystridium |
Micrhystridium acum
|
Belgium |
Wenlockian |
|
Micrhystridium |
Micrhystridium acuminosum
|
Morocco |
Ordovician |
|
Micrhystridium |
Micrhystridium adductum
|
Ohio |
Late Devonian |
|
Micrhystridium |
Micrhystridium adligans
|
USSR |
Late Cambrian |
|
Micrhystridium |
Micrhystridium akrochordum
|
England |
Early Ordovician |
|