Staurocephalites |
Staurocephalites acutidentatus
sp. nov. |
Iowa |
Mohawkian |
|
Staurocephalites |
Staurocephalites antiquus
sp. nov. |
Minnesota |
Mohawkian |
|
Staurocephalites |
Staurocephalites antiquus
sp. nov. |
Iowa |
Mohawkian |
|
Staurocephalites |
Staurocephalites dentatus
sp. nov. |
Minnesota |
Mohawkian |
|
Thalenessites |
Thalenessites
|
Minnesota |
Mohawkian |
|
Thalenessites |
Thalenessites lobatus
sp. nov. |
Minnesota |
Mohawkian |
|
Thalenessites |
Thalenessites sp
sp. nov. |
Minnesota |
Mohawkian |
|
Ungulites |
Ungulites
|
Minnesota |
Mohawkian |
|
Ungulites |
Ungulites aculeatus
sp. nov. |
Minnesota |
Mohawkian |
|
Ungulites |
Ungulites bicuspidatus
sp. nov. |
Minnesota |
Mohawkian |
|
Ungulites |
Ungulites hystricosus
sp. nov. |
Minnesota |
Mohawkian |
|
Ungulites |
Ungulites hystricosus
sp. nov. |
Iowa |
Mohawkian |
|
Ungulites |
Ungulites tridentatus
sp. nov. |
Minnesota |
Mohawkian |
|