Microbaculidinium |
Microbaculidinium cornutum
|
Atlantic Ocean |
Cretaceous |
|
Microbaculidinium |
Microbaculidinium cornutum
|
Atlantic Ocean |
Early Cretaceous |
Middle Cretaceous |
Microbaculidinium |
Microbaculidinium curvatum
|
USSR(Estonian SSR) |
Late Ordovician |
|
Microbaculidinium |
Microbaculidinium filiatum
|
North America |
Early Cretaceous |
|
Microbaculidinium |
Microbaculidinium pellitum
|
Belgium |
Early Ordovician |
|
Microbaculidinium |
Microbaculidinium varispinosum
|
USSR(Estonian SSR) |
Middle Ordovician |
|
Multiplicisphaeridium |
Multiplicisphaeridium crinitum
|
USSR(Kazakh SSR) |
Early Gothlandian |
|
Multiplicisphaeridium |
Multiplicisphaeridium intonsurans
|
England |
Late Gothlandian |
|
Multiplicisphaeridium |
Multiplicisphaeridium mergaeferum
|
New York |
Wenlockian |
|
Multiplicisphaeridium |
Multiplicisphaeridium ramispinosum
|
Canada(Alberta) |
Devonian |
|
Multiplicisphaeridium |
Multiplicisphaeridium variopinnum
|
USSR(Estonian SSR) |
Early Ordovician |
Middle Ordovician |
Nannobarbophora |
Nannobarbophora
|
Atlantic Coast Offshore |
Berriasian |
Cenomanian |
Nannobarbophora |
Nannobarbophora hystricosum
|
Australia(W.Australia) |
Middle Devonian |
Late Devonian |
Nannobarbophora |
Nannobarbophora pistilla
|
North America |
Middle Cretaceous |
Late Cretaceous |
Nannobarbophora |
Nannobarbophora platforma
|
North America |
Middle Cretaceous |
Late Cretaceous |
Neoveryhachium |
Neoveryhachium
|
Nd |
Nd |
|
Neoveryhachium |
Neoveryhachium carminae
|
Spain |
Late Gothlandian |
Early Devonian |