Stephanelytron |
Stephanelytron caytonense
|
Nd |
Late Callovian |
Middle Oxfordian |
Tenua |
Tenua atlantica
|
Nd |
Late Callovian |
Late Oxfordian |
Evansia |
Evansia granulata
|
Nd |
Late Callovian |
|
Pareodinia |
Pareodinia spinosissima
|
Nd |
Middle Callovian |
Middle Oxfordian |
Pareodinia |
Pareodinia ceratophora
|
Nd |
Middle Callovian |
|
Pareodinia |
Pareodinia alaskensis
|
Nd |
Callovian |
Middle Kimmeridgian |
Leiosphaeridia |
Leiosphaeridia hyalina
|
Nd |
Middle Callovian |
Late Kimmeridgian |
Cleistosphaeridium |
Cleistosphaeridium ehrenbergii
|
Nd |
Middle Callovian |
Late Kimmeridgian |
Cleistosphaeridium |
Cleistosphaeridium polyacanthum
|
Nd |
Late Callovian |
Middle Kimmeridgian |
Cleistosphaeridium |
Cleistosphaeridium tribuliferum
|
Nd |
Late Callovian |
Late Kimmeridgian |
Adnatosphaeridium |
Adnatosphaeridium aemulum
|
Nd |
Callovian |
Late Kimmeridgian |
Scriniodinium |
Scriniodinium crystallinum
|
Nd |
Late Callovian |
Late Kimmeridgian |
Scriniodinium |
Scriniodinium dictyotum
|
Nd |
Late Callovian |
Late Kimmeridgian |
Endoscrinium |
Endoscrinium luridum
|
Nd |
Early Callovian |
Early Kimmeridgian |
Adnatosphaeridium |
Adnatosphaeridium caulleryi
|
Nd |
Callovian |
Cretaceous |
Leptodinium |
Leptodinium freakei
|
Nd |
Early Oxfordian |
Middle Oxfordian |
Leptodinium |
Leptodinium eumorphum
|
Nd |
Middle Oxfordian |
|