High-precision (40)Ar/(39)Ar geochronology and the advent of North America’s Late Cretaceous terrestrial fauna

A densely sampled, diverse new fauna from the uppermost Cedar Mountain Formation, Utah, indicates that the basic pattern of faunal composition for the Late Cretaceous of North America was already established by the Albian-Cenomanian boundary. Multiple, concordant (40)Ar/(39)Ar determinations from a...

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Détails bibliographiques

Publié dans:	Proc Natl Acad Sci U S A
Auteurs principaux:	Cifelli, Richard L., Kirkland, James I., Weil, Anne, Deino, Alan L., Kowallis, Bart J.
Format:	Artigo
Langue:	Inglês
Publié:	National Academy of Sciences 1997
Sujets:	Biological Sciences
Accès en ligne:	https://ncbi.nlm.nih.govhttps://pmc.ncbi.nlm.nih.gov/articles/PMC23402/ https://ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/9326579/ https://ncbi.nlm.nih.govhttps://doi.org/10.1073/pnas.94.21.11163
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