Leiomarginata |
Leiomarginata simplex
|
USSR(Yakut ASSR) |
Ordovician |
|
Leiopsophosphaera |
Leiopsophosphaera apiculata
|
USSR(Yakut ASSR) |
Early Ordovician |
|
Leiopsophosphaera |
Leiopsophosphaera plicatilis
|
USSR(Yakut ASSR) |
Ordovician |
|
Leiopsophosphaera |
Leiopsophosphaera plicatilis
|
USSR(Yakut ASSR) |
Early Ordovician |
|
Linotolypa |
Linotolypa eisenackii
|
USSR(Yakut ASSR) |
Ordovician |
|
Lophosphaeridium |
Lophosphaeridium
|
USSR(Yakut ASSR) |
Early Cambrian |
|
Menneria |
Menneria
|
USSR(Yakut ASSR) |
Riphean |
Early Cambrian |
Polyforama |
Polyforama
|
USSR(Yakut ASSR) |
Vendian |
Early Cambrian |
Spumiosa |
Spumiosa
|
USSR(Yakut ASSR) |
Vendian |
Early Cambrian |
Spumiosa |
Spumiosa dgetimica
|
USSR(Yakut ASSR) |
Ordovician |
|
Spumososphaera |
Spumososphaera
|
USSR(Yakut ASSR) |
Early Riphean |
|
Stictosphaeridium |
Stictosphaeridium
|
USSR(Yakut ASSR) |
Late Riphean |
Early Cambrian |
Tasmanites |
Tasmanites
|
USSR(Yakut ASSR) |
Late Riphean |
|
Tasmanites |
Tasmanites mangaseus
|
USSR(Yakut ASSR) |
Ordovician |
|
Trachymarginata |
Trachymarginata grumulosa
|
USSR(Yakut ASSR) |
Ordovician |
|
Trachymarginata |
Trachymarginata speciosa
|
USSR(Yakut ASSR) |
Ordovician |
|
Trachysphaeridium |
Trachysphaeridium simplex
|
USSR(Yakut ASSR) |
Ordovician |
|