Acanthodiacrodium |
Acanthodiacrodium raium
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium rauscheri
|
Nd |
Early Arenigian |
|
Acanthodiacrodium |
Acanthodiacrodium reclinatum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium rectinerve
|
Nd |
Late Llanvirnian |
|
Acanthodiacrodium |
Acanthodiacrodium rigidiusculum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium rigidulum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium rotundatum
|
Nd |
Late Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium rugosum
|
Nd |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium rupeum
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium scaberrimum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium schmidtii
|
Nd |
Middle Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium scytotomillei
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium secundarium
|
Nd |
Middle Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium selectum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium serotinum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium sexcuspidatum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium sexdentatum
|
Nd |
Late Cambrian |
|