Name | From | To | Age range |
---|---|---|---|
Muderongia brevispinosa | Ryazanian | Ryazanian |
|
Muderongia siciliana | Early Hauterivian | Early Hauterivian |
|
Muderongia boltonii | Early Cretaceous | Early Cretaceous |
|
Muderongia gracilis | Ypresian | Ypresian |
|