Protarabellites |
Protarabellites diminutus
|
North America |
Middle Devonian |
|
Protarabellites |
Protarabellites dubius
|
North America |
Middle Ordovician |
|
Protarabellites |
Protarabellites excelsus
|
North America |
Middle Devonian |
|
Protarabellites |
Protarabellites fidelis
|
North America |
Middle Ordovician |
|
Protarabellites |
Protarabellites giganteus
|
North America |
Middle Devonian |
|
Protarabellites |
Protarabellites glenwoodensis
|
North America |
Middle Ordovician |
|
Protarabellites |
Protarabellites grandis
|
North America |
Middle Ordovician |
|
Protarabellites |
Protarabellites hamiltonensis
|
North America |
Middle Devonian |
|
Protarabellites |
Protarabellites humilis
|
North America |
Middle Ordovician |
|
Protarabellites |
Protarabellites intermedius
|
North America |
Middle Ordovician |
|
Protarabellites |
Protarabellites maturensis
|
North America |
Middle Ordovician |
|
Protarabellites |
Protarabellites productus
|
North America |
Middle Ordovician |
|
Pteropelta |
Pteropelta gladiata
|
Nd |
Nd |
|
Pteropelta |
Pteropelta glossa
|
Nd |
Nd |
|
Pteropelta |
Pteropelta thomsoni
|
Nd |
Nd |
|
Ramphegenysites |
Ramphegenysites oldmannensis
|
North America |
Cretaceous |
|
Ramphoprion |
Ramphoprion elongatus
|
Europe |
Middle Ordovician |
|