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Direct U-Pb dating of Cretaceous and Paleocene dinosaur bones, San Juan Basin, New Mexico: COMMENT

Geology

By:
, , , , , ,
DOI: 10.1130/G32154C.1

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Abstract

Based on U-Pb dating of two dinosaur bones from the San Juan Basin of New Mexico (United States), Fassett et al. (2011) claim to provide the first successful direct dating of fossil bones and to establish the presence of Paleocene dinosaurs. Fassett et al. ignore previously published work that directly questions their stratigraphic interpretations (Lucas et al., 2009), and fail to provide sufficient descriptions of instrumental, geochronological, and statistical treatments of the data to allow evaluation of the potentially complex diagenetic and recrystallization history of bone. These shortcomings lead us to question the validity of the U-Pb dates published by Fassett et al. and their conclusions regarding the existence of Paleocene dinosaurs.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Direct U-Pb dating of Cretaceous and Paleocene dinosaur bones, San Juan Basin, New Mexico: COMMENT
Series title:
Geology
DOI:
10.1130/G32154C.1
Volume
40
Issue:
4
Year Published:
2012
Language:
English
Publisher:
GSA
Contributing office(s):
Central Mineral and Environmental Resources Science Center
Description:
1 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
e262
Last page:
e262
Country:
United States
State:
New Mexico
Other Geospatial:
San Juan Basin