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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...

Whakaahuatanga katoa

I tiakina i:
Ngā taipitopito rārangi puna kōrero
I whakaputaina i:Proc Natl Acad Sci U S A
Ngā kaituhi matua: Cifelli, Richard L., Kirkland, James I., Weil, Anne, Deino, Alan L., Kowallis, Bart J.
Hōputu: Artigo
Reo:Inglês
I whakaputaina: National Academy of Sciences 1997
Ngā marau:
Urunga tuihono: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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