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Author:
Umnova,N.I.
Year:
1975
Title:
Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic
Foreign title:
Akritarkhi Ordovika i Silura Moskovskovi Sineklizy i Prebaltiki
Reference:
Umnova,N.I. (1975) Ordovician and Silurian acritarchs of the Moscow Basin and Prebaltic [ Akritarkhi Ordovika i Silura Moskovskovi Sineklizy i Prebaltiki ] Izdatelstvo Nedra,Moscow P. 1- 167
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Genus Species Country(Region) From To
Priscotheca Priscotheca complanata USSR(Russian Platform) Tremadocian
Priscotheca Priscotheca complanata Algeria Tremadocian
Protoleiosphaeridium Protoleiosphaeridium conglutinatum USSR(Russian Platform) Ludlovian
Protoleiosphaeridium Protoleiosphaeridium conglutinatum USSR(Pre-Baltic) Proterozoic Middle Ordovician
Protoleiosphaeridium Protoleiosphaeridium sokolovi USSR(Russian Platform) Ordovician Silurian
Pterospermopsis Pterospermopsis marginatus USSR(Russian Platform) Tremadocian Wenlockian
Pterospermopsis Pterospermopsis marginatus sp. nov. USSR(Yaroslav) Tremadocian
Pterospermopsis Pterospermopsis onondagaensis USSR(Russian Platform) Wenlockian
Schismatosphaeridium Schismatosphaeridium faveolatum sp. nov. USSR(Yaroslav) Early Gothlandian
Schismatosphaeridium Schismatosphaeridium insolens USSR(Russian Platform) Late Ordovician Silurian
Schismatosphaeridium Schismatosphaeridium insolens sp. nov. USSR(Yaroslav) Early Gothlandian
Schismatosphaeridium Schismatosphaeridium mutnum USSR(Russian Platform) Middle Ordovician Silurian
Schismatosphaeridium Schismatosphaeridium perforatum USSR(Russian Platform) Ordovician Silurian
Schismatosphaeridium Schismatosphaeridium piriferum sp. nov. USSR(Yaroslav) Early Gothlandian
Schismatosphaeridium Schismatosphaeridium poriferum USSR(Russian Platform) Early Gothlandian Late Llandoverian
Schismatosphaeridium Schismatosphaeridium poriferum sp. nov. USSR(Estonian SSR) Late Llandoverian
Schismatosphaeridium Schismatosphaeridium similis USSR(Russian Platform) Middle Ordovician Early Gothlandian