Pterospermopsis |
Pterospermopsis danica
|
Nd |
Nd |
|
Pterospermopsis |
Pterospermopsis helios
|
Nd |
Nd |
|
Pterosphaeridia |
Pterosphaeridia eisenackii
|
E.Germany |
Liassic |
|
Pterosphaeridia |
Pterosphaeridia intersignata
|
E.Germany |
Liassic |
|
Pterosphaeridia |
Pterosphaeridia nodosa
|
E.Germany |
Liassic |
|
Pterosphaeridia |
Pterosphaeridia pachytheca
|
Germany |
Liassic |
|
Pterosphaeridia |
Pterosphaeridia pachytheca
|
England(Yorkshire) |
Liassic |
|
Pterosphaeridia |
Pterosphaeridia pachytheca
|
England(Dorset) |
Liassic |
|
Pterosphaeridia |
Pterosphaeridia pachytheca
|
England(Lincolnshire) |
Liassic |
|
Pterosphaeridia |
Pterosphaeridia undulata
|
E.Germany |
Liassic |
|
Pulvinosphaeridium |
Pulvinosphaeridium cochinum
|
Belgium |
Tarannon |
|
Pulvinosphaeridium |
Pulvinosphaeridium cochinum
|
Belgium |
Wenlockian |
|
Pulvinosphaeridium |
Pulvinosphaeridium cochinum
|
Spain |
Ludlovian |
Early Gedinnian |
Pulvinosphaeridium |
Pulvinosphaeridium oligoprojectum
|
Nd |
Nd |
|
Pulvinosphaeridium |
Pulvinosphaeridium oligospinosum
|
Nd |
Nd |
|
Pulvinosphaeridium |
Pulvinosphaeridium parvum
|
Belgium |
Tarannon |
|
Pulvinosphaeridium |
Pulvinosphaeridium parvum
|
Spain |
Late Llandoverian |
Early Gedinnian |