Centrasphaeridium |
Centrasphaeridium armarium
|
Nd |
Frasnian |
|
Centrasphaeridium |
Centrasphaeridium lecythium
|
Nd |
Frasnian |
|
Cephalia |
Cephalia
|
Nd |
Nd |
|
Cephalia |
Cephalia globata
|
Nd |
Tertiary |
|
Cephalia |
Cephalia ovata
|
Nd |
Tertiary |
|
Cepillum |
Cepillum
|
Nd |
Nd |
|
Cepillum |
Cepillum puercoespinoide
|
Nd |
Ludlovian |
Early Gedinnian |
Cepulina |
Cepulina
|
USSR(Ukrainian SSR) |
Middle Jurassic |
|
Cepulina |
Cepulina spinellata
|
Nd |
Jurassic |
|
Ceratocystidiopsis |
Ceratocystidiopsis
|
Nd |
Nd |
|
Ceratocystidiopsis |
Ceratocystidiopsis incerta
|
Nd |
Late Cretaceous |
|
Ceratocystidiopsis |
Ceratocystidiopsis ludbrookiae
|
Nd |
Albian |
|
Ceratocystidiopsis |
Ceratocystidiopsis molesta
|
Nd |
Senonian |
|
Ceratocystidiopsis |
Ceratocystidiopsis simplex
|
Nd |
Late Cretaceous |
|
Ceratophyton |
Ceratophyton
|
Nd |
Nd |
|
Ceratophyton |
Ceratophyton duplicum
|
Nd |
Early Cambrian |
|
Ceratophyton |
Ceratophyton vernicosum
|
Nd |
Early Cambrian |
|