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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Pubblicato in:	Proc Natl Acad Sci U S A
Autori principali:	Cifelli, Richard L., Kirkland, James I., Weil, Anne, Deino, Alan L., Kowallis, Bart J.
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	National Academy of Sciences 1997
Soggetti:	Biological Sciences
Accesso online:	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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