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 pusillum Nd Riphean
Protosphaeridium Protosphaeridium reticulatum Nd Middle Riphean Early Cambrian
Protosphaeridium Protosphaeridium rigidulum Finland Late Precambrian Early Cambrian
Protosphaeridium Protosphaeridium rugulosum Spain Middle Cambrian Late Cambrian
Protosphaeridium Protosphaeridium scabridum Nd Riphean
Protosphaeridium Protosphaeridium semiclausum Nd Nd
Protosphaeridium Protosphaeridium spumosum Nd Nd
Protosphaeridium Protosphaeridium torulosum Nd Middle Cambrian
Protosphaeridium Protosphaeridium tuberculiferum Nd Middle Cambrian
Protosphaeridium Protosphaeridium vermium Nd Late Proterozoic
Protosphaeridium Protosphaeridium vesiculare Nd Nd
Protosphaeridium Protosphaeridium volkovae India(Madhya Pradesh) Late Precambrian
Prototrachysphaeridium Prototrachysphaeridium Nd Nd
Prototrachysphaeridium Prototrachysphaeridium speciosum Nd Nd
Prototrachysphaeridium Prototrachysphaeridium staplini Nd Nd
Psenotopus Psenotopus Nd Nd
Psenotopus Psenotopus chondrocheus Nd Silurian