Neoveryhachium |
Neoveryhachium mayhillense
|
England |
Late Gothlandian |
|
Neoveryhachium |
Neoveryhachium neocarminae
|
Alabama |
Early Gothlandian |
|
Neoveryhachium |
Neoveryhachium pinto
|
Spain |
Late Gothlandian |
|
Neoveryhachium |
Neoveryhachium plicum
|
USSR(Siberia) |
Early Gothlandian |
|
Neoveryhachium |
Neoveryhachium stridente
|
Spain |
Late Gothlandian |
Early Devonian |
Odontothrix |
Odontothrix
|
Atlantic Coast Offshore |
Berriasian |
Late Albian |
Odontothrix |
Odontothrix bahamensis
|
Atlantic Coast Offshore |
Berriasian |
Valanginian |
Odontothrix |
Odontothrix bahamensis
|
North America |
Early Cretaceous |
|
Odontothrix |
Odontothrix conatus
|
North America |
Middle Cretaceous |
|
Odontothrix |
Odontothrix conatus
|
North America |
Middle Cretaceous |
|
Oligosphaeridium |
Oligosphaeridium complex
|
England |
Late Cretaceous |
|
Oligosphaeridium |
Oligosphaeridium tubulatum
|
Argentina |
Oligocene |
|
Palacanthus |
Palacanthus
|
Ohio |
Late Devonian |
|
Palacanthus |
Palacanthus acutus
|
Ohio |
Late Devonian |
|
Palacanthus |
Palacanthus ledanoisii
|
France |
Devonian |
|
Palacanthus |
Palacanthus tripus
|
Belgium |
Early Devonian |
|
Palacanthus |
Palacanthus varius
|
France |
Early Devonian |
|