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
Protosphaeridium Protosphaeridium densum Nd Vendian
Protosphaeridium Protosphaeridium flexuosum Nd Vendian
Protosphaeridium Protosphaeridium fuscipetiolatum Morocco Early Arenigian
Protosphaeridium Protosphaeridium gibberosum Nd Late Precambrian
Protosphaeridium Protosphaeridium gracile USSR(Baltic) Early Gothlandian
Protosphaeridium Protosphaeridium granuliferum India(Karnataka) Middle Riphean
Protosphaeridium Protosphaeridium intertextum Nd Nd
Protosphaeridium Protosphaeridium kerianum Nd Nd
Protosphaeridium Protosphaeridium laccatum Norway Vendian
Protosphaeridium Protosphaeridium muirii Nd Nd
Protosphaeridium Protosphaeridium paleaceum Nd Vendian
Protosphaeridium Protosphaeridium papyraceum Nd Late Precambrian
Protosphaeridium Protosphaeridium parvulum Nd Late Cambrian
Protosphaeridium Protosphaeridium patelliforme USSR(Ukrainian SSR) Sinian
Protosphaeridium Protosphaeridium petaliferum Spain Middle Cambrian Late Cambrian
Protosphaeridium Protosphaeridium petigenosum Nd Nd
Protosphaeridium Protosphaeridium punctatum India(Karnataka) Middle Riphean Early Cambrian