Protoleiosphaeridium |
Protoleiosphaeridium conglutinatum
sp. nov. |
USSR(Pre-Baltic) |
Proterozoic |
Middle Ordovician |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium dentatum
sp. nov. |
USSR(Pre-Baltic) |
Late Cambrian |
Early Ordovician |
Trachydiacrodium |
Trachydiacrodium legiminiforme
sp. nov. |
USSR(Pre-Baltic) |
Late Cambrian |
Early Ordovician |
Acanthodiacrodium |
Acanthodiacrodium micronatum
sp. nov. |
USSR(Pre-Baltic) |
Late Cambrian |
Early Ordovician |
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium zalesskyi
sp. nov. |
USSR(Pre-Baltic) |
Late Cambrian |
Early Ordovician |
Acanthodiacrodium |
Acanthodiacrodium subbarbatum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium contortuplicatum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium complicatum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Archaeohystrichosphaeridium |
Archaeohystrichosphaeridium cinctum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium hippocrepicum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium pateum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium hirsutoides
|
USSR(Pre-Baltic) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium setigerfurcatum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium sexradiatum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium circumscissum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium nudatum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|
Hystrichosphaeridium |
Hystrichosphaeridium corollatum
sp. nov. |
USSR(Pre-Baltic) |
Early Ordovician |
|