Siliculina |
Siliculina simplicissima
|
USSR(Pre-Urals) |
Early Mesozoic |
|
Encephalartilagenella |
Encephalartilagenella glabra
|
USSR(Pre-Urals) |
Early Mesozoic |
|
Vittatina |
Vittatina subsaccata
|
USSR(Pre-Urals) |
Early Permian |
|
Bennettitaceaeacuminella |
Bennettitaceaeacuminella
|
USSR(Pre-Urals) |
Rhaetian |
|
Bennettitaceaeacuminella |
Bennettitaceaeacuminella simplex
|
USSR(Pre-Urals) |
Rhaetian |
|
Ginkgoretectina |
Ginkgoretectina punctata
|
USSR(Pre-Urals) |
Rhaetian |
|
Bennettitaceaeinvolutella |
Bennettitaceaeinvolutella bilateralis
|
USSR(Pre-Urals) |
Rhaetian |
|
Cycadaceaeplatychila |
Cycadaceaeplatychila punctata
|
USSR(Pre-Urals) |
Rhaetian |
|
Stenozonotriletes |
Stenozonotriletes
|
USSR(Russian Platform) |
Givetian |
Frasnian |
Lophozonotriletes |
Lophozonotriletes
|
USSR(Russian Platform) |
Givetian |
|
Archaeozonotriletes |
Archaeozonotriletes
|
USSR(Russian Platform) |
Givetian |
|
Archaeotriletes |
Archaeotriletes
|
USSR(Russian Platform) |
Frasnian |
|
Perisaccus |
Perisaccus
|
USSR(Russian Platform) |
Frasnian |
|
Archaeoperisaccus |
Archaeoperisaccus
|
USSR(Russian Platform) |
Frasnian |
|
Psophosphaera |
Psophosphaera
|
USSR(Russian Platform) |
Cretaceous |
|
Psophosphaera |
Psophosphaera tenuis
sp. nov. |
USSR(Russian Platform) |
Cretaceous |
|
Pseudowalchia |
Pseudowalchia
|
USSR(Siberia) |
Early Cretaceous |
|