Acanthodiacrodium |
Acanthodiacrodium polyedricum
|
France |
Middle Jurassic |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium parvum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium abditum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium ambiguum
|
Canada |
Early Devonian |
|
Dorsennidium |
Dorsennidium arcarium
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium belgicum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium brevispinum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium bulbiferum
|
France |
Silurian |
|
Dorsennidium |
Dorsennidium cantabricum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium circumornatum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium collectum
|
England |
Early Jurassic |
|
Dorsennidium |
Dorsennidium conispinosum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium cylindricum
|
Germany |
Nd |
|
Dorsennidium |
Dorsennidium cymosum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium decollatum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium depilatum
|
Nd |
Nd |
|
Dorsennidium |
Dorsennidium dualispinum
|
England |
Early Jurassic |
|