Also known as NMMNH L-4723; NMMNH L-4725; Head of Willow Wash
Where: San Juan County, New Mexico (36.3° N, 108.2° W: paleocoordinates 43.2° N, 87.3° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Pu3 (66.0 - 63.3 Ma)
• "late Puercan" = Pu3 (Williamson and Weil 2010)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: mesofossils
Collection methods: bulk, sieve,
• methods include "underwater screening"
Primary reference: T. E. Williamson and A. Weil. 2002. A Late Puercan (Pu3) microfauna from the San Juan Basin, New Mexico. Journal of Vertebrate Paleontology 22(3):119A-120A [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 26575: authorized by John Alroy, entered by John Alroy on 17.10.2002, edited by Philip Mannion
Creative Commons license: CC BY (attribution)
Taxonomic list
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Thylacodon pusillus1 Matthew and Granger 1921 marsupial NMMNH P-34808, right abraded m1; 38459, partial left M3, missing lingual portion of tooth, buccal to paracone and metacone and tooth distal to apex of metacone; 41142, right m1; 41199, right M3, missing portion of tooth on mesiobuccal corner and with abraded buccal margin; 51546, right abraded m2 or 3; 53303, right partial M2; 53929, right m1; 54382, right m2 or 3; 56649, left m2 or 3
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Valenia sp. de Muizon and Cifelli 2000 condylarth
Tiznatzinia sp. Simpson 1936 condylarth | |
Betonnia tsosia3, "Cimolestes simpsoni" = Puercolestes simpsoni, "Puercolestes simpsoni" = Puercolestes simpsoni3
"Cimolestes simpsoni" = Puercolestes simpsoni Reynolds 1936 eutherian | |
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Mesodma sp. Jepsen 1940 multituberculate | |