Cleistosphaeridium |
Cleistosphaeridium oligacanthum
sp. nov. |
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium parvum
|
Nd |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium patagonicum
|
Nd |
Eocene |
|
Cleistosphaeridium |
Cleistosphaeridium pectiniforme
|
Nd |
Oligocene |
|
Cleistosphaeridium |
Cleistosphaeridium pilosum
|
Nd |
Nd |
|
Cleistosphaeridium |
Cleistosphaeridium polyacanthum
|
Nd |
Early Kimmeridgian |
|
Cleistosphaeridium |
Cleistosphaeridium polypes
sp. nov. |
Nd |
Cenomanian |
|
Cleistosphaeridium |
Cleistosphaeridium polypes
|
Nd |
Albian |
Cenomanian |
Cleistosphaeridium |
Cleistosphaeridium polytrichum
|
Nd |
Late Bathonian |
|
Cleistosphaeridium |
Cleistosphaeridium spiralisetum
|
Nd |
Late Cretaceous |
|
Cleistosphaeridium |
Cleistosphaeridium tiara
|
Nd |
Eocene |
|
Cleistosphaeridium |
Cleistosphaeridium tribuliferum
|
Nd |
Oxfordian |
|
Cobricosphaeridium |
Cobricosphaeridium hebes
|
Nd |
Recent |
|
Cobricosphaeridium |
Cobricosphaeridium spiniferum
|
Nd |
Recent |
|
Cobricosphaeridium |
Cobricosphaeridium spiniferum
|
Nd |
Recent |
|
Cobricosphaeridium |
Cobricosphaeridium spiniferum
|
Nd |
Holocene |
|
Codonia |
Codonia
|
Nd |
Nd |
|