Muderongia |
Muderongia tetracantha
|
USSR(Ryazin) |
Late Barremian |
Early Aptian |
Nelchinopsis |
Nelchinopsis kostromiensis
|
USSR(Ryazin) |
Hauterivian |
|
Neodiacrodium |
Neodiacrodium breviprocessatum
|
USSR(Ryazin) |
Late Barremian |
Early Aptian |
Neodiacrodium |
Neodiacrodium corniculatum
|
USSR(Ryazin) |
Late Barremian |
Early Aptian |
Neodiacrodium |
Neodiacrodium timofeevii
|
USSR(Ryazin) |
Late Barremian |
Early Aptian |
Odontochitina |
Odontochitina operculata
|
USSR(Ryazin) |
Late Barremian |
Early Aptian |
Oligosphaeridium |
Oligosphaeridium diluculum
|
USSR(Ryazin) |
Ryazanian |
|
Oligosphaeridium |
Oligosphaeridium pulcherrimum
|
USSR(Ryazin) |
Late Barremian |
Early Aptian |
Ovoidinium |
Ovoidinium implanum
|
USSR(Ryazin) |
Hauterivian |
|
Pareodinia |
Pareodinia ceratophora
|
USSR(Ryazin) |
Ryazanian |
Hauterivian |
Pareodinia |
Pareodinia sp
|
USSR(Ryazin) |
Ryazanian |
Hauterivian |
Pareodinia |
Pareodinia sp.I Dave.,1982
sp. nov. |
USSR(Ryazin) |
Ryazanian |
|
Phoberocysta |
Phoberocysta neocomica
|
USSR(Ryazin) |
Ryazanian |
Hauterivian |
Phoberocysta |
Phoberocysta neocomica
|
USSR(Ryazin) |
Hauterivian |
|
Prolixosphaeridium |
Prolixosphaeridium conulum
|
USSR(Ryazin) |
Ryazanian |
|
Prolixosphaeridium |
Prolixosphaeridium parvispinum
|
USSR(Ryazin) |
Ryazanian |
|
Protobatioladinium |
Protobatioladinium rossicum
|
USSR(Ryazin) |
Ryazanian |
|