Acanthodiacrodium |
Acanthodiacrodium magnum
|
Nd |
Early Arenigian |
|
Acanthodiacrodium |
Acanthodiacrodium mamillatum
|
Nd |
Late Tremadocian |
Early Arenigian |
Acanthodiacrodium |
Acanthodiacrodium mediale
|
Nd |
Middle Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium meonanthum
|
Nd |
Early Gothlandian |
|
Acanthodiacrodium |
Acanthodiacrodium micronatum
|
Nd |
Late Cambrian |
Early Ordovician |
Acanthodiacrodium |
Acanthodiacrodium micronulatum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium minimum
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium mitraeforme
|
Nd |
Middle Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium nidiusculum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium novum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium numerosum
|
Nd |
Middle Cambrian |
Late Cambrian |
Acanthodiacrodium |
Acanthodiacrodium oblongatum
|
Algeria |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium obolense
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium ordinarium
|
Nd |
Middle Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium ordovicianum
sp. nov. |
USSR(Estonian SSR) |
Early Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium orthoploceum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium ovatum
|
Nd |
Tremadocian |
|