Author:
Williams,G.L.;Stover,L.E.;Kidson,E.J.
Year:
1993
Title:
Morphology and stratigraphic ranger of selected Mesozoic-Cenozoic dinoflagellate taxa in the northern Hemisphere
Reference:
Williams,G.L. et al. (1993) Morphology and stratigraphic ranger of selected Mesozoic-Cenozoic dinoflagellate taxa in the northern Hemisphere Geological Survey of Canada, Paper Vol. 92 # 10 P. 1- 137
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Genus Species Country(Region) From To
Wetzeliella Wetzeliella articulata Northern Hemisphere Ypresian Rupelian
Wetzeliella Wetzeliella symmetrica Northern Hemisphere Bartonian Chattian
Xenascus Xenascus sp Northern Hemisphere Barremian Early Maastrichtian
Xiphophoridium Xiphophoridium alatum Northern Hemisphere Late Albian Santonian