Achomosphaera |
Achomosphaera robusta
|
Nd |
Late Cretaceous |
|
Achomosphaera |
Achomosphaera sagena
|
Nd |
Cenomanian |
|
Achomosphaera |
Achomosphaera triangulata
|
Nd |
Miocene |
|
Achomosphaera |
Achomosphaera tridactylites
|
Nd |
Cretaceous |
|
Achomosphaera |
Achomosphaera valianta
|
Nd |
Late Cretaceous |
|
Actiniscus |
Actiniscus discus
|
Nd |
Late Neogene |
|
Actiniscus |
Actiniscus elegans
|
Nd |
Late Neogene |
|
Actiniscus |
Actiniscus heptagonus
|
Nd |
Late Neogene |
|
Actiniscus |
Actiniscus pentasterias
|
Nd |
Late Neogene |
|
Actiniscus |
Actiniscus rota
|
Nd |
Late Neogene |
|
Actiniscus |
Actiniscus sexfurcatus
|
Nd |
Recent |
|
Actiniscus |
Actiniscus sirius
|
Nd |
Miocene |
|
Actiniscus |
Actiniscus stella
|
Nd |
Late Neogene |
|
Actiniscus |
Actiniscus tetrasterias
|
Nd |
Miocene |
|
Actinotheca |
Actinotheca aphroditae
|
Nd |
Turonian |
|
Actinotheca |
Actinotheca ornata
|
Nd |
Senonian |
|
Adnatosphaeridium |
Adnatosphaeridium aemulum
|
Nd |
Oxfordian |
|