Thornton Beach (Pleistocene of the United States)
Also known as UCMP V-6422
Where: San Mateo County, California (37.7° N, 122.5° W: paleocoordinates 37.6° N, 122.2° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Irvingtonian (1.8 - 0.3 Ma)
Environment/lithology: terrestrial
Reposited in the UCMP
Primary reference: C. T. Madden. 1983. More earliest isotopically dated Mammuthus from North America. Quaternary Research 19(2):275-277 [J. Alroy/J. Alroy/J. Ju]more details
PaleoDB collection 20543: authorized by John Alroy, entered by John Alroy on 15.05.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
• dated at 1.5 +/- 0.8 Ma KA: Madden 1980
Show authors, comments, and common names
| Mammalia | |
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Mammuthus hayi Barbour 1915 mammoth compatible with Webb and Dudley 1995, but assigned to M. meridionalis by Lucas 1996
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