Acanthogonyaulax |
Acanthogonyaulax
|
Nd |
Nd |
|
Alasphaera |
Alasphaera caudata
|
Nd |
Nd |
|
Alterbia |
Alterbia acribes
|
Nd |
Nd |
|
Alterbia |
Alterbia balmei
|
Nd |
Nd |
|
Alterbia |
Alterbia pentaradiata
|
Nd |
Eocene |
|
Alterbia |
Alterbia pentaradiata
|
Nd |
Nd |
|
Alterbia |
Alterbia raijae
|
Nd |
Nd |
|
Amphidiadema |
Amphidiadema nucula
|
Nd |
Santonian |
|
Amphidiadema |
Amphidiadema rectangularis
|
Nd |
Late Turonian |
Middle Senonian |
Andalusiella |
Andalusiella laevigata
|
Nd |
Campanian |
Maastrichtian |
Andalusiella |
Andalusiella polymorpha
|
Nd |
Maastrichtian |
|
Apectodinium |
Apectodinium augustum
|
Nd |
Nd |
|
Apectodinium |
Apectodinium homomorphum
|
Nd |
Nd |
|
Apectodinium |
Apectodinium longispinosum
|
New Zealand(S.I.) |
Early Tertiary |
|
Apectodinium |
Apectodinium parvum
|
Nd |
Late Paleocene |
|
Apectodinium |
Apectodinium quinquelatum
|
Nd |
Late Paleocene |
Early Eocene |
Apiculadinium |
Apiculadinium
|
Nd |
Nd |
|