Polychaetaspis |
Polychaetaspis inconstans
|
Europe |
Silurian |
|
Polychaetaspis |
Polychaetaspis kozlowskii
|
North America |
Late Gothlandian |
|
Polychaetaspis |
Polychaetaspis latus
|
Europe |
Early Ordovician |
|
Polychaetaspis |
Polychaetaspis oklahomensis
|
North America |
Middle Ordovician |
|
Polychaetaspis |
Polychaetaspis tuberculatus
|
Europe |
Middle Ordovician |
|
Polychaetaspis |
Polychaetaspis varsoviensis
|
Europe |
Middle Ordovician |
|
Polychaetaspis |
Polychaetaspis warkae
|
Europe |
Middle Ordovician |
|
Polychaetaspis |
Polychaetaspis wyszogrodensis
|
Europe |
Middle Ordovician |
Late Ordovician |
Polychaetura |
Polychaetura gracilis
|
Europe |
Middle Ordovician |
Late Ordovician |
Praelumbrinereis |
Praelumbrinereis zawidskae
|
Europe |
Triassic |
|
Processoprion |
Processoprion longiprocessus
|
Europe |
Late Devonian |
|
Pronereites |
Pronereites naviculiformis
|
Nd |
Nd |
|
Pronereites |
Pronereites primus
|
Nd |
Nd |
|
Protarabellites |
Protarabellites angustus
|
North America |
Middle Devonian |
|
Protarabellites |
Protarabellites canadensis
|
Nd |
Nd |
|
Protarabellites |
Protarabellites concavus
|
Nd |
Nd |
|
Protarabellites |
Protarabellites delectus
|
North America |
Middle Ordovician |
|