Pterospermella |
Pterospermella microptera
|
Australia(W.Australia) |
Middle Miocene |
|
Pterospermella |
Pterospermella microptera
|
Australia(W.Australia) |
Early Tertiary |
|
Pterospermella |
Pterospermella microptera
|
Australia(Victoria) |
Paleocene |
Middle Eocene |
Pterospermella |
Pterospermella microptera
|
Denmark |
Early Tertiary |
|
Pterospermella |
Pterospermella onondagaensis
|
Belgium |
Silurian |
|
Pterospermella |
Pterospermella onondagaensis
|
England |
Wenlockian |
|
Pterospermella |
Pterospermella onondagaensis
|
Canada(Ontario) |
Middle Devonian |
|
Pterospermella |
Pterospermella onondagaensis
|
Spain |
Late Ludlovian |
Emsian |
Pterospermella |
Pterospermella pastielsii
|
Australia(W.Australia) |
Middle Cretaceous |
|
Pterospermella |
Pterospermella pernambucensis
|
Brazil(Pernambuco) |
Middle Devonian |
|
Pterospermella |
Pterospermella pluriparietes
|
E.Germany |
Portlandian |
|
Pterospermella |
Pterospermella rajada
|
Spain |
Emsian |
|
Pterospermella |
Pterospermella spinosa
|
England(Isle of Wight) |
Senonian |
|
Pterospermella |
Pterospermella timofeevii
sp. nov. |
France |
Couvinian |
|
Pterospermella |
Pterospermella typicaus
|
India(Madhya Pradesh) |
Late Cambrian |
Ordovician |
Pterospermella |
Pterospermella zonaria
|
Belgium |
Eocene |
|
Pterospermopsis |
Pterospermopsis danica
|
W.Germany |
Danian |
|