Author:
Fensome,R.A.;Williams,G.L.;Barss,M.S.;Freeman,J.M.;Hill,J.M.
Year:
1990
Title:
Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa.
Reference:
Fensome,R.A. et al. (1990) Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. American Association of Stratigraphic Palynologists, Contributions Series # 25 P. 1- 771
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Genus Species Country(Region) From To
Trachysphaeridium Trachysphaeridium magnum Nd Riphean
Trachysphaeridium Trachysphaeridium maicum Nd Riphean
Trachysphaeridium Trachysphaeridium minor Nd Late Sinian
Trachysphaeridium Trachysphaeridium myctum Nd Early Cambrian
Trachysphaeridium Trachysphaeridium parapertum Nd Proterozoic
Trachysphaeridium Trachysphaeridium partiale Nd Late Proterozoic
Trachysphaeridium Trachysphaeridium patellare sp. nov. USSR(Pre-Baltic) Arenigian
Trachysphaeridium Trachysphaeridium phalanxum Nd Late Llandoverian
Trachysphaeridium Trachysphaeridium plicatum Nd Nd
Trachysphaeridium Trachysphaeridium pulchriforme Nd Sinian Cambrian
Trachysphaeridium Trachysphaeridium raryplicatum Nd Ludlovian
Trachysphaeridium Trachysphaeridium reticuloideum Nd Sinian
Trachysphaeridium Trachysphaeridium rigidulum Finland Late Precambrian Early Cambrian
Trachysphaeridium Trachysphaeridium roblotum USSR(Kirghiz SSR) Middle Riphean Vendian
Trachysphaeridium Trachysphaeridium robustum Nd Sinian
Trachysphaeridium Trachysphaeridium rugosum Nd Sinian
Trachysphaeridium Trachysphaeridium striatum Nd Sinian