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
Hapsidopalla Hapsidopalla chela Nd Givetian
Hapsidopalla Hapsidopalla exornata Nd Early Devonian
Hapsidopalla Hapsidopalla invenusta Nd Givetian
Hapsidopalla Hapsidopalla reticulata Nd Wenlockian
Hapsidopalla Hapsidopalla sannemannii Nd Middle Devonian
Hapsidopalla Hapsidopalla venusta Nd Late Givetian
Helios Helios Nd Nd
Helios Helios aranaides Nd Ludlovian Early Gedinnian
Helios Helios umbelliferum Nd Emsian
Heliospermopsis Heliospermopsis Nd Nd
Heliospermopsis Heliospermopsis dongyingensis Nd Early Oligocene Middle Oligocene
Heliospermopsis Heliospermopsis hungaricus Nd Serravallian
Heliospermopsis Heliospermopsis minor Nd Late Oligocene Early Miocene
Heliospermopsis Heliospermopsis tenellus Nd Late Oligocene Early Miocene
Helosphaeridium Helosphaeridium Nd Nd
Helosphaeridium Helosphaeridium citrinipeltatum Nd Early Llandoverian
Helosphaeridium Helosphaeridium clavispinulosum Nd Ludlovian