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
Baltisphaeridium Baltisphaeridium regnellii Nd Early Virgulian
Baltisphaeridium Baltisphaeridium regnellii Nd Middle Ordovician
Baltisphaeridium Baltisphaeridium rehdense Nd Middle Miocene
Baltisphaeridium Baltisphaeridium reticuloidum Nd Late Oligocene
Baltisphaeridium Baltisphaeridium reticulum Nd Early Cambrian
Baltisphaeridium Baltisphaeridium rhabdophorum Nd Late Cretaceous
Baltisphaeridium Baltisphaeridium rigens Nd Early Ordovician
Baltisphaeridium Baltisphaeridium rigidum Nd Nd
Baltisphaeridium Baltisphaeridium ritvae Nd Middle Ordovician
Baltisphaeridium Baltisphaeridium rjabininii Nd Early Ordovician
Baltisphaeridium Baltisphaeridium robertinum Nd Ludlovian Emsian
Baltisphaeridium Baltisphaeridium robustispinosum Nd Wenlockian
Baltisphaeridium Baltisphaeridium robustum USSR(Estonian SSR) Early Caradocian
Baltisphaeridium Baltisphaeridium robustum Nd Late Givetian
Baltisphaeridium Baltisphaeridium robustum Nd Late Givetian
Baltisphaeridium Baltisphaeridium robustum Nd Late Cambrian
Baltisphaeridium Baltisphaeridium rochesterense Nd Late Llandoverian