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
Orygmatosphaeridium Orygmatosphaeridium ruminatum Nd Early Ordovician
Orygmatosphaeridium Orygmatosphaeridium semireticulatum Nd Middle Precambrian
Orygmatosphaeridium Orygmatosphaeridium trizonatum Congo Late Precambrian
Orygmatosphaeridium Orygmatosphaeridium vulgarum Nd Late Precambrian
Oshania Oshania Nd Nd
Oshania Oshania horrida Nd Late Precambrian
Oshania Oshania inornata Nd Late Precambrian
Oudhkusumites Oudhkusumites Nd Nd
Oudhkusumites Oudhkusumites ankleshvarensis Nd Eocene Miocene
Oudhkusumites Oudhkusumites foveolatus Nd Eocene Miocene
Oudhkusumites Oudhkusumites immodiscus Nd Paleocene
Ova Ova Nd Nd
Ovidiscina Ovidiscina Nd Nd
Ovidiscina Ovidiscina pakungshannica Nd Nd
Ovnia Ovnia Nd Nd
Ovnia Ovnia desertica Nd Gedinnian
Ovnia Ovnia uahabita Nd Gedinnian