Odontochitina |
Odontochitina sp
sp. nov. |
Texas |
Middle Albian |
|
Odontochitina |
Odontochitina sp.1
sp. nov. |
New Mexico |
Late Albian |
|
Odontochitina |
Odontochitina sp.1
sp. nov. |
Nebraska |
Early Cenomanian |
|
Pseudoceratium |
Pseudoceratium
|
Nd |
Nd |
|
Pseudoceratium |
Pseudoceratium anaphrissum
|
England(Yorkshire) |
Early Barremian |
|
Pseudoceratium |
Pseudoceratium eisenackii
|
Kansas |
Late Albian |
|
Pseudoceratium |
Pseudoceratium eisenackii
|
Canada(Saskatchewan) |
Cenomanian |
|
Pseudoceratium |
Pseudoceratium interiorense
sp. nov. |
Kansas |
Late Albian |
|
Pseudoceratium |
Pseudoceratium interiorense
sp. nov. |
Wyoming |
Late Albian |
|
Pseudoceratium |
Pseudoceratium plerum
|
England(Isle of Wight) |
Early Aptian |
|
Pseudoceratium |
Pseudoceratium polymorphum
|
W.Germany(Schleswig) |
Late Aptian |
|
Pseudoceratium |
Pseudoceratium securigerum
|
Kansas |
Late Albian |
|
Pseudoceratium |
Pseudoceratium securigerum
|
France(Alpes,Cote d'Azur) |
Early Aptian |
|
Pseudoceratium |
Pseudoceratium sp
sp. nov. |
Wyoming |
Late Albian |
|
Vesperopsis |
Vesperopsis
|
Kansas |
Late Albian |
|
Vesperopsis |
Vesperopsis digitata
|
England(Isle of Wight) |
Late Aptian |
|
Vesperopsis |
Vesperopsis dolabella
|
England(Isle of Wight) |
Early Albian |
|