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
Percultisphaera Percultisphaera Nd Nd
Percultisphaera Percultisphaera ledburica Nd Ludlovian
Percultisphaera Percultisphaera pilosa Nd Wenlockian
Percultisphaera Percultisphaera stiphrospinata Nd Ludlovian Downtonian
Peregrinixia Peregrinixia Nd Nd
Peregrinixia Peregrinixia radiata Nd Vraconian
Perforela Perforela Nd Nd
Perforela Perforela perforata Nd Ludlovian
Perisaccus Perisaccus Nd Nd
Perisaccus Perisaccus primigenus Nd Ordovician
Perissolagonella Perissolagonella Nd Nd
Perissolagonella Perissolagonella amsdenii Nd Late Gedinnian
Pertusisphaeridium Pertusisphaeridium Nd Nd
Pertusisphaeridium Pertusisphaeridium dispar Nd Frasnian
Petaloferidium Petaloferidium Nd Nd
Petaloferidium Petaloferidium comptum Nd Arenigian Llanvirnian
Petaloferidium Petaloferidium florigerum Czechoslovakia Early Llanvirnian