Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium protensum
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium pungens
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium quadridentatum
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium quadrinatum
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium scandeum
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium scariosum
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium scrotiforme
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium septangulum
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium simplex
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium singulare
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium solitare
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium solitare
|
USSR(Russian Platform) |
Middle Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium sp
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium stipiforme
|
USSR(Belorussian SSR) |
Early Cambrian |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium strictum
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium unguisum
|
USSR(Russian Platform) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium vologdense
|
USSR(Belorussian SSR) |
Early Cambrian |
|