Acanthodiacrodium |
Acanthodiacrodium diadromum
|
China(Shanghai) |
Tremadocian |
Arenigian |
Acanthodiacrodium |
Acanthodiacrodium heteroclitum
|
China(Shanghai) |
Arenigian |
|
Acanthodiacrodium |
Acanthodiacrodium heteroclitum
|
China(Shanghai) |
Tremadocian |
Arenigian |
Acanthodiacrodium |
Acanthodiacrodium orthoploceum
|
China(Shanghai) |
Arenigian |
|
Acanthodiacrodium |
Acanthodiacrodium orthoploceum
|
China(Shanghai) |
Tremadocian |
Arenigian |
Acanthodiacrodium |
Acanthodiacrodium partiale
|
China(Shanghai) |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium prolongatum
|
China(Shanghai) |
Tremadocian |
|
Acanthodiacrodium |
Acanthodiacrodium simplex
|
China(Shanghai) |
Arenigian |
|
Acantholigotriletum |
Acantholigotriletum gdowium
|
China(Shanghai) |
Arenigian |
|
Acantholigotriletum |
Acantholigotriletum gdowium
|
USSR(Pre-Baltic) |
Vendian |
|
Acantholigotriletum |
Acantholigotriletum tetragonum
|
China(Shanghai) |
Arenigian |
|
Acanthorytidodiacrodium |
Acanthorytidodiacrodium prolongatum
|
China(Shanghai) |
Tremadocian |
Arenigian |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium acanthaceum
|
China(Shanghai) |
Arenigian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium acanthaceum
|
USSR(Pre-Baltic) |
Middle Cambrian |
Late Cambrian |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium angulosum
|
China(Shanghai) |
Arenigian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium angulosum
|
China(Shanghai) |
Tremadocian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium angulosum
|
USSR(Pre-Baltic) |
Middle Cambrian |
|