Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium innominatum
|
China(Shanghai) |
Arenigian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium innominatum
|
USSR(Pre-Baltic) |
Early Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium kudrjawzevii
|
China(Shanghai) |
Arenigian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium kudrjawzevii
|
USSR(Pre-Baltic) |
Late Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium mickwitzii
|
China(Shanghai) |
Tremadocian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium mickwitzii
|
USSR(Pre-Baltic) |
Late Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium panderi
|
China(Shanghai) |
Arenigian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium panderi
|
USSR(Pre-Baltic) |
Middle Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium papillosum
|
China(Shanghai) |
Arenigian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium papillosum
|
USSR(Pre-Baltic) |
Late Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium protensum
|
China(Shanghai) |
Arenigian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium protensum
|
China(Shanghai) |
Tremadocian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium triviale
|
China(Shanghai) |
Tremadocian |
Arenigian |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium triviale
|
USSR(Pre-Baltic) |
Middle Cambrian |
Late Cambrian |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium unguisum
|
China(Shanghai) |
Arenigian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium unguisum
|
USSR(Pre-Baltic) |
Late Cambrian |
|
Aremoricanium |
Aremoricanium erchunense
|
China(Shanghai) |
Arenigian |
|