Muderongia |
Muderongia aequicorna
sp. nov. |
Spitsbergen |
Early Barremian |
|
Muderongia |
Muderongia asymmetrica
|
Spitsbergen |
Early Barremian |
|
Muderongia |
Muderongia australis
|
Nd |
Hauterivian |
Barremian |
Muderongia |
Muderongia mcwhaei
|
Nd |
Nd |
|
Muderongia |
Muderongia pariata
|
Nd |
Nd |
|
Muderongia |
Muderongia perforata
|
Spitsbergen |
Barremian |
|
Muderongia |
Muderongia staurota
|
Nd |
Nd |
|
Muderongia |
Muderongia tetracantha
|
Nd |
Early Barremian |
|
Nannoceratopsis |
Nannoceratopsis gracilis
|
Spitsbergen |
Early Barremian |
|
Nannoceratopsis |
Nannoceratopsis pellucida
|
Spitsbergen |
Early Barremian |
|
Nelchinopsis |
Nelchinopsis kostromiensis
|
Spitsbergen |
Hauterivian |
Early Barremian |
Nematosphaeropsis |
Nematosphaeropsis scala
|
Spitsbergen |
Early Barremian |
|
Oligosphaeridium |
Oligosphaeridium asterigerum
|
Spitsbergen |
Hauterivian |
Early Barremian |
Oligosphaeridium |
Oligosphaeridium complex
|
Spitsbergen |
Berriasian |
Early Barremian |
Palaeoperidinium |
Palaeoperidinium cretaceum
|
Spitsbergen |
Early Barremian |
|
Pareodinia |
Pareodinia borealis
|
Spitsbergen |
Early Berriasian |
Early Barremian |
Pareodinia |
Pareodinia sp
|
Spitsbergen |
Early Berriasian |
|