Microsphaeridium |
Microsphaeridium ancistroides
|
Nd |
Nd |
|
Nannoceratopsis |
Nannoceratopsis
|
France(Calvados) |
Early Oxfordian |
|
Nelchinopsis |
Nelchinopsis
|
Nd |
Nd |
|
Nelchinopsis |
Nelchinopsis kostromiensis
|
Nd |
Nd |
|
Opaeopsomus |
Opaeopsomus
|
Nd |
Nd |
|
Opaeopsomus |
Opaeopsomus wapellensis
|
Nd |
Nd |
|
Palaeohystrichophora |
Palaeohystrichophora
|
Nd |
Nd |
|
Palaeohystrichophora |
Palaeohystrichophora
|
Nd |
Nd |
|
Palaeoperidinium |
Palaeoperidinium
|
E.Germany(Potsdam) |
Late Cretaceous |
|
Paranetrelytron |
Paranetrelytron
|
Nd |
Nd |
|
Pentadinium |
Pentadinium
|
Nd |
Nd |
|
Pentadinium |
Pentadinium
|
Nd |
Nd |
|
Podamphoropsis |
Podamphoropsis
|
Nd |
Nd |
|
Podamphoropsis |
Podamphoropsis joidesi
|
Nd |
Nd |
|
Polygonifera |
Polygonifera
|
Nd |
Nd |
|
Polygonifera |
Polygonifera evittii
|
Nd |
Nd |
|
Polystephanephorus |
Polystephanephorus
|
England(Yorkshire) |
Early Oxfordian |
|