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
Orthosphaeridium Orthosphaeridium vibrissiferum Nd Middle Ordovician
Orygmahapsis Orygmahapsis Nd Nd
Orygmahapsis Orygmahapsis fistulosa Nd Silurian
Orygmahapsis Orygmahapsis magnata Nd Late Givetian
Orygmatosphaeridium Orygmatosphaeridium Nd Nd
Orygmatosphaeridium Orygmatosphaeridium distributum Nd Late Riphean Vendian
Orygmatosphaeridium Orygmatosphaeridium foveolatum Nd Early Cambrian
Orygmatosphaeridium Orygmatosphaeridium holtedahlii USSR(Tyumenskaya Oblast) Eocambrian
Orygmatosphaeridium Orygmatosphaeridium inconspicuum Nd Early Cambrian
Orygmatosphaeridium Orygmatosphaeridium kerianum Nd Late Proterozoic
Orygmatosphaeridium Orygmatosphaeridium liulaobeiense Nd Sinian
Orygmatosphaeridium Orygmatosphaeridium liulaobeiense Nd Nd
Orygmatosphaeridium Orygmatosphaeridium minor Nd Nd
Orygmatosphaeridium Orygmatosphaeridium minus Nd Sinian
Orygmatosphaeridium Orygmatosphaeridium minutum Nd Wenlockian
Orygmatosphaeridium Orygmatosphaeridium plicatum Nd Late Precambrian
Orygmatosphaeridium Orygmatosphaeridium rubiginosum Nd Middle Precambrian