Sirmiodinium |
Sirmiodinium oxfordianum
|
Europe |
Callovian |
|
Stephanelytron |
Stephanelytron caytonense
|
Northern Hemisphere |
Late Oxfordian |
Kimmeridgian |
Stephanelytron |
Stephanelytron caytonense
|
Gondwanaland |
Late Oxfordian |
|
Stephanelytron |
Stephanelytron caytonense
|
Europe |
Callovian |
Early Oxfordian |
Stephanelytron |
Stephanelytron redcliffense
|
Northern Hemisphere |
Callovian |
Kimmeridgian |
Stephanelytron |
Stephanelytron redcliffense
|
Gondwanaland |
Oxfordian |
|
Stephanelytron |
Stephanelytron redcliffense
|
Europe |
Callovian |
Oxfordian |
Stephanelytron |
Stephanelytron scarburghense
|
Northern Hemisphere |
Oxfordian |
|
Stephanelytron |
Stephanelytron scarburghense
|
Gondwanaland |
Early Oxfordian |
|
Stephanelytron |
Stephanelytron scarburghense
|
Europe |
Callovian |
Middle Oxfordian |
Surculosphaeridium |
Surculosphaeridium cribrotubiferum
|
Northern Hemisphere |
Callovian |
Early Oxfordian |
Surculosphaeridium |
Surculosphaeridium cribrotubiferum
|
Gondwanaland |
Oxfordian |
|
Surculosphaeridium |
Surculosphaeridium cribrotubiferum
|
Europe |
Callovian |
Early Oxfordian |
Surculosphaeridium |
Surculosphaeridium vestitum
|
Northern Hemisphere |
Callovian |
Kimmeridgian |
Surculosphaeridium |
Surculosphaeridium vestitum
|
Gondwanaland |
Late Oxfordian |
Kimmeridgian |
Surculosphaeridium |
Surculosphaeridium vestitum
|
Europe |
Callovian |
Oxfordian |
Systematophora |
Systematophora areolata
|
Northern Hemisphere |
Oxfordian |
|