Daillydium |
Daillydium pentaster
|
Iowa |
Frasnian |
|
Unellium |
Unellium winslowiae
|
Iowa |
Frasnian |
|
Villosacapsula |
Villosacapsula ceratioides
|
Iowa |
Frasnian |
|
Cristallinium |
Cristallinium cambriense
|
Ireland |
Middle Cambrian |
|
Eliasum |
Eliasum llaniscum
|
Ireland |
Middle Cambrian |
|
Polyedryxium |
Polyedryxium pharaone
|
Kentucky |
Givetian |
|
Deflandrastrum |
Deflandrastrum millepiedii
|
Libya |
Ludlovian |
|
Veryhachium |
Veryhachium subglobosum
|
Libya |
Ashgillian |
|
Villosacapsula |
Villosacapsula irrorata
|
Libya |
Ashgillian |
|
Acanthodiacrodium |
Acanthodiacrodium
|
Nd |
Early Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium amplium
|
Nd |
Early Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium anceps
|
Nd |
Nd |
|
Acanthodiacrodium |
Acanthodiacrodium anfractum
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium angustum
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium complanatum
|
Nd |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium crinitum
|
Nd |
Late Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium formosum
|
Nd |
Late Tremadocian |
|