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
Baltisphaeridium Baltisphaeridium pungens USSR(Pre-Baltic) Middle Cambrian Late Cambrian
Baltisphaeridium Baltisphaeridium ravum USSR(Russian Platform) Middle Ordovician
Baltisphaeridium Baltisphaeridium ravum England(Shropshire) Wenlockian
Baltisphaeridium Baltisphaeridium rigens USSR(Russian Platform) Tremadocian Wenlockian
Baltisphaeridium Baltisphaeridium rigens sp. nov. USSR(Russian Platform) Tremadocian
Baltisphaeridium Baltisphaeridium rigidum sp. nov. USSR(Yaroslav) Llanvirnian
Baltisphaeridium Baltisphaeridium robustispinosum USSR(Russian Platform) Llanvirnian
Baltisphaeridium Baltisphaeridium rugosum USSR(Russian Platform) Ordovician Silurian
Baltisphaeridium Baltisphaeridium rugosum USSR(Estonian SSR) Early Gothlandian
Baltisphaeridium Baltisphaeridium setigerum USSR(Russian Platform) Early Ordovician Middle Ordovician
Baltisphaeridium Baltisphaeridium setigerum sp. nov. USSR(Yaroslav) Arenigian
Baltisphaeridium Baltisphaeridium snigirevskae USSR(Russian Platform) Llanvirnian Early Gothlandian
Baltisphaeridium Baltisphaeridium snigirevskae Belgium Tarannon
Baltisphaeridium Baltisphaeridium stellarie USSR(Russian Platform) Early Ordovician Middle Ordovician
Baltisphaeridium Baltisphaeridium stellarie sp. nov. USSR(Yaroslav) Middle Ordovician
Baltisphaeridium Baltisphaeridium trifurcatum USSR(Russian Platform) Caradocian
Baltisphaeridium Baltisphaeridium unguisum USSR(Russian Platform) Ordovician