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
Quadraditum Quadraditum Nd Nd
Quadraditum Quadraditum deunffii Nd Early Ludlovian
Quadraditum Quadraditum fantasticum Nd Ludlovian Early Gedinnian
Quadraditum Quadraditum ibericum Nd Early Ludlovian
Quadraditum Quadraditum incisum Nd Middle Siegenian Emsian
Quadraditum Quadraditum scutiferum Nd Devonian
Quadratimorpha Quadratimorpha Nd Nd
Quadratimorpha Quadratimorpha florentis Nd Middle Sinian
Quadratimorpha Quadratimorpha gregaria Nd Nd
Quadratimorpha Quadratimorpha minor Nd Sinian
Quadratimorpha Quadratimorpha ordinata Nd Middle Sinian
Quadratimorpha Quadratimorpha simplisis Nd Middle Sinian
Quadratimorpha Quadratimorpha tenera Nd Middle Sinian
Quadrina Quadrina Nd Nd
Quadrina Quadrina pallida Nd Late Eocene
Quadruilobus Quadruilobus Nd Nd
Quadruilobus Quadruilobus argentinensis Nd Early Ludlovian