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
Trachyrytidodiacrodium Trachyrytidodiacrodium ovale Nd Llanvirnian
Trachysphaeridium Trachysphaeridium Nd Nd
Trachysphaeridium Trachysphaeridium adischevii USSR(Kirghiz SSR) Early Cambrian
Trachysphaeridium Trachysphaeridium adornatum Nd Nd
Trachysphaeridium Trachysphaeridium apertum Nd Late Riphean
Trachysphaeridium Trachysphaeridium asaphum Nd Early Cambrian
Trachysphaeridium Trachysphaeridium asemantum Nd Early Devonian
Trachysphaeridium Trachysphaeridium atteniatum Nd Nd
Trachysphaeridium Trachysphaeridium attenuatum Nd Arenigian
Trachysphaeridium Trachysphaeridium bavlense Nd Late Proterozoic
Trachysphaeridium Trachysphaeridium caoshanense Nd Sinian
Trachysphaeridium Trachysphaeridium chihsienense Nd Late Sinian
Trachysphaeridium Trachysphaeridium compactum Nd Late Gothlandian
Trachysphaeridium Trachysphaeridium complanatum Nd Middle Cambrian
Trachysphaeridium Trachysphaeridium conglomeratum Nd Nd
Trachysphaeridium Trachysphaeridium cultum Nd Nd
Trachysphaeridium Trachysphaeridium dalkiense Nd Middle Algonkian