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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Cyhoeddwyd yn:	Proc Natl Acad Sci U S A
Prif Awduron:	Cifelli, Richard L., Kirkland, James I., Weil, Anne, Deino, Alan L., Kowallis, Bart J.
Fformat:	Artigo
Iaith:	Inglês
Cyhoeddwyd:	National Academy of Sciences 1997
Pynciau:	Biological Sciences
Mynediad Ar-lein:	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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