Cribroperidinium |
Cribroperidinium pyrum
|
California |
Late Maastrichtian |
Danian |
Acanthaulax |
Acanthaulax venusta
|
Nd |
Nd |
|
Achomosphaera |
Achomosphaera alcicornu
|
Nd |
Nd |
|
Achomosphaera |
Achomosphaera grallaeformis
|
Nd |
Nd |
|
Achomosphaera |
Achomosphaera neptuni
|
Nd |
Nd |
|
Achomosphaera |
Achomosphaera ramulifera
|
Nd |
Nd |
|
Achomosphaera |
Achomosphaera ramulifera
|
Nd |
Nd |
|
Achomosphaera |
Achomosphaera sagena
|
Nd |
Nd |
|
Achomosphaera |
Achomosphaera triangulata
|
Nd |
Nd |
|
Cordosphaeridium |
Cordosphaeridium hirundo
|
Nd |
Nd |
|
Spiniferites |
Spiniferites hyperacanthus
|
Nd |
Nd |
|
Adnatosphaeridium |
Adnatosphaeridium caulleryi
|
Nd |
Nd |
|
Adnatosphaeridium |
Adnatosphaeridium multispinosum
|
Nd |
Nd |
|
Adnatosphaeridium |
Adnatosphaeridium vittatum
|
Nd |
Nd |
|
Rigaudella |
Rigaudella aemula
|
Nd |
Nd |
|
Rigaudella |
Rigaudella filamentosa
|
Nd |
Nd |
|
Thalassiphora |
Thalassiphora patula
|
Nd |
Nd |
|