Also known as T2; TMM 40147; Middle Peak; Alligator Alley
Where: Brewster County, Texas (29.4° N, 103.1° W: paleocoordinates 35.3° N, 84.7° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Black Peaks Formation (Tornillo Group), Torrejonian (63.8 - 60.9 Ma)
• 140 ft above base of formation; Torrejonian based on Leslie et al. (2018)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Collected by J. Wilson, M. McKenna, G. Whitaker in 1952, 1962–1963; reposited in the TMM
Collection methods: surface (in situ),
Primary reference: J. A. Wilson. 1967. Early Tertiary mammals. In R. A. Maxwell, J. T. Lonsdale, R. T. Hazzard, & J. A. Wilson (eds.), Geology of Big Bend National Park, Brewster County, Texas. The University of Texas Publication 6711:157-169 [M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 14948: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
new records of Williamson 1996 were described by Schiebout 1986 (Ph.D. thesis)
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