Acanthodiacrodium |
Acanthodiacrodium prolongatum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium proximum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium punctulatum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium quadrangulare
|
USSR(Baltic) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium quadrangulum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium reclinatum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium rigidiusculum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium rigidiusculum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium rigidulum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium scaberrimum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium schmidtii
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium secundarium
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium selectum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium serotinum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium sexcuspidatum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium sexdentatum
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium simplissimum
|
USSR(Baltic) |
Early Ordovician |
|