Acanthodiacrodium |
Acanthodiacrodium siempreplicatum
|
Nd |
Late Arenigian |
Early Llanvirnian |
Acanthodiacrodium |
Acanthodiacrodium simplex
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium simpliciusculum
|
Nd |
Late Llanvirnian |
|
Acanthodiacrodium |
Acanthodiacrodium simplissimum
|
Nd |
Early Gothlandian |
|
Acanthodiacrodium |
Acanthodiacrodium sinuosum
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium spathulatum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium spinellosum
|
Nd |
Early Gothlandian |
|
Acanthodiacrodium |
Acanthodiacrodium spinulosum
|
Nd |
Early Aptian |
|
Acanthodiacrodium |
Acanthodiacrodium spinum
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium spinutisum
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium squarrosum
|
Nd |
Middle Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium subbarbatum
|
Nd |
Late Ordovician |
|
Acanthodiacrodium |
Acanthodiacrodium subrotundum
|
Nd |
Early Gothlandian |
|
Acanthodiacrodium |
Acanthodiacrodium subscabrum
|
Nd |
Early Gothlandian |
|
Acanthodiacrodium |
Acanthodiacrodium sukatschevii
|
Nd |
Late Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium superaum
|
Nd |
Middle Cambrian |
|
Acanthodiacrodium |
Acanthodiacrodium tadlense
|
Nd |
Early Arenigian |
|