Veryhachium |
Veryhachium hamii
|
Oklahoma |
Late Ordovician |
|
Veryhachium |
Veryhachium irroratum
|
Oklahoma |
Middle Ordovician |
|
Veryhachium |
Veryhachium reductum
|
Nd |
Nd |
|
Visbysphaera |
Visbysphaera dilatispinosa
|
Sweden |
Early Gothlandian |
|
Visbysphaera |
Visbysphaera erratica
|
New York |
Middle Gothlandian |
|
Wallodinium |
Wallodinium bidigitatum
|
Canada(Arctic) |
Late Cretaceous |
|
Wallodinium |
Wallodinium bidigitatum
|
Australia |
Late Cretaceous |
|
Wallodinium |
Wallodinium krutzschii
|
Germany |
Early Cretaceous |
|
Wanaea |
Wanaea clathrata
|
Australia |
Late Jurassic |
|
Wetzeliella |
Wetzeliella articulata
|
England |
Eocene |
|
Wilsonidium |
Wilsonidium echinosuturatum
|
New Zealand |
Middle Eocene |
|
Xenicodinium |
Xenicodinium lubricum
|
Germany |
Paleocene |
|
Xiphophoridium |
Xiphophoridium alatum
|
France |
Late Cretaceous |
|
Zosterosphaera |
Zosterosphaera tripunctata
|
South Africa |
|
|