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
Baltisphaera Baltisphaera quadricornis Nd Late Llanvirnian
Baltisphaera Baltisphaera quadrinata Nd Late Llanvirnian
Baltisphaera Baltisphaera ternata Nd Late Llanvirnian
Baltisphaera Baltisphaera transitoria Nd Late Llanvirnian
Baltisphaeridium Baltisphaeridium Nd Nd
Baltisphaeridium Baltisphaeridium acanthaceum Nd Middle Cambrian Late Cambrian
Baltisphaeridium Baltisphaeridium accinctum Nd Llandeilian
Baltisphaeridium Baltisphaeridium acerosum Nd Early Cambrian
Baltisphaeridium Baltisphaeridium aciculatum Nd Triassic
Baltisphaeridium Baltisphaeridium aculeatum Nd Early Ordovician
Baltisphaeridium Baltisphaeridium admixtum Nd Albian
Baltisphaeridium Baltisphaeridium affluens Nd Tremadocian
Baltisphaeridium Baltisphaeridium ainiktum Nd Late Gedinnian
Baltisphaeridium Baltisphaeridium aitholikellum Nd Late Gedinnian
Baltisphaeridium Baltisphaeridium akrochordum Nd Tremadocian
Baltisphaeridium Baltisphaeridium aliquigranulum Nd Ashgillian
Baltisphaeridium Baltisphaeridium alloiteauii Nd Middle Devonian