Pterospermopsis |
Pterospermopsis bernardinae
|
Nd |
Emsian |
|
Pterospermopsis |
Pterospermopsis brasiliensis
|
Nd |
Late Devonian |
|
Pterospermopsis |
Pterospermopsis bulbosa
|
Nd |
Jurassic |
|
Pterospermopsis |
Pterospermopsis carminae
|
Nd |
Middle Siegenian |
Emsian |
Pterospermopsis |
Pterospermopsis castellaroii
|
Nd |
Early Tertiary |
|
Pterospermopsis |
Pterospermopsis centrata
|
Nd |
Albian |
Cenomanian |
Pterospermopsis |
Pterospermopsis chinaica
|
Nd |
Late Ordovician |
|
Pterospermopsis |
Pterospermopsis chiquitina
|
Nd |
Middle Siegenian |
Emsian |
Pterospermopsis |
Pterospermopsis circumstriata
|
Nd |
Emsian |
|
Pterospermopsis |
Pterospermopsis concentricus
|
China(Hopei) |
Middle Sinian |
|
Pterospermopsis |
Pterospermopsis concentricus
|
Senegal |
Aptian |
Albian |
Pterospermopsis |
Pterospermopsis danica
|
Nd |
Danian |
|
Pterospermopsis |
Pterospermopsis doringii
|
Nd |
Jurassic |
|
Pterospermopsis |
Pterospermopsis dubius
|
Nd |
Late Riphean |
|
Pterospermopsis |
Pterospermopsis eurypteris
|
Nd |
Aptian |
|
Pterospermopsis |
Pterospermopsis flosdevonica
|
Nd |
Frasnian |
|
Pterospermopsis |
Pterospermopsis foveolata
|
Nd |
Nd |
|