Pterospermella |
Pterospermella australiensis
|
Australia(W.Australia) |
Albian |
Cenomanian |
Pterospermella |
Pterospermella australiensis
|
South Dakota |
Paleocene |
|
Pterospermella |
Pterospermella australiensis
|
Australia(NSW) |
Early Cretaceous |
|
Pterospermella |
Pterospermella barbarae
|
Poland |
Campanian |
|
Pterospermella |
Pterospermella barbarae
|
W.Germany |
Eocene |
|
Pterospermella |
Pterospermella barbarae
|
Belgium |
Ypresian |
|
Pterospermella |
Pterospermella barbarae
|
California |
Maastrichtian |
Danian |
Pterospermella |
Pterospermella bernardinae
|
Spain |
Emsian |
|
Pterospermella |
Pterospermella bernardinae
|
France(Manche) |
Ludlovian |
|
Pterospermella |
Pterospermella brasiliensis
|
Brazil(Maranhao) |
Late Devonian |
|
Pterospermella |
Pterospermella carminae
|
Spain |
Middle Siegenian |
Emsian |
Pterospermella |
Pterospermella castellaroii
|
Argentina |
Early Tertiary |
|
Pterospermella |
Pterospermella centrata
|
Australia(W.Australia) |
Middle Cretaceous |
|
Pterospermella |
Pterospermella chiquitina
|
Spain |
Middle Siegenian |
Emsian |
Pterospermella |
Pterospermella circumstriata
|
Algeria |
Emsian |
|
Pterospermella |
Pterospermella eurypteris
|
Australia(W.Australia) |
Late Neocomian |
Cenomanian |
Pterospermella |
Pterospermella eurypteris
|
E.Germany |
Early Barremian |
|