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
Costatosphaerina Costatosphaerina septata Nd Precambriam Early Cambrian
Costatosphaerina Costatosphaerina tenuissima Nd Nd
Crameria Crameria Nd Nd
Crameria Crameria aspera Nd Emsian
Crameria Crameria carminae Nd Emsian
Crameria Crameria duplex Nd Emsian
Crameria Crameria embuda Nd Siegenian Emsian
Crameria Crameria pharaonis Nd Couvinian
Crameria Crameria pharaonis Nd Givetian
Crameria Crameria pharaonis Nd Emsian
Crameria Crameria pharaonis Nd Nd
Crameria Crameria pharaonis Nd Nd
Crameria Crameria pharaonis Nd Couvinian
Crameria Crameria pyramis Nd Nd
Crameria Crameria triploderma Nd Gedinnian Emsian
Crameria Crameria valentina Nd Middle Siegenian Emsian
Crassiangulina Crassiangulina Nd Nd