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
Hystrichosphaeridium Hystrichosphaeridium williereae Nd Silurian
Hystrichosphaeridium Hystrichosphaeridium wimanii Nd Llandoverian
Hystrichosphaeridium Hystrichosphaeridium zonale Nd Early Ordovician
Hystrichotriangulatum Hystrichotriangulatum Nd Nd
Hystrichotriangulatum Hystrichotriangulatum convexum Nd Early Ordovician
Iberosphaeridium Iberosphaeridium Nd Nd
Iberosphaeridium Iberosphaeridium almadraba Nd Late Ludlovian Early Gedinnian
Impletosphaeridium Impletosphaeridium Nd Nd
Impletosphaeridium Impletosphaeridium primordiale Nd Ordovician
Impluviculus Impluviculus Nd Nd
Impluviculus Impluviculus campidanus Nd Late Cambrian Early Ordovician
Impluviculus Impluviculus cleae Nd Tremadocian
Impluviculus Impluviculus lenticularis Nd Tremadocian
Impluviculus Impluviculus milonii Nd Tremadocian
Impluviculus Impluviculus robustus Nd Tremadocian
Impluviculus Impluviculus stellaris Nd Tremadocian
Impluviculus Impluviculus stellus Nd Tremadocian