TMM 41221, South Wall (Eocene of the United States)

Where: Brewster County, Texas (29.2° N, 103.2° W: paleocoordinates 33.5° N, 89.1° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Hannold Hill Formation (Tornillo Group), Wasatchian (55.8 - 50.3 Ma)

• Lehman et al. 2018: "the previously unrecognized Exhibit Ridge fault makes stratigraphic placement of the site uncertain, and so the specimens might have been derived from the overlying Exhibit Sandstone Member of the Hannold Hill Formation"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

Size class: macrofossils

Reposited in the TMM

Collection methods: surface (float),

Primary reference: J. A. Schiebout. 1989. Society of Vertebrate Paleontology, 49th Annual Meeting Guidebook [J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 15838: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• NOT in Black Peaks Fm.
137 m level of "formation"
Mammalia
 Cimolesta - Pantolambdidae
"Barylambda jackwilsoni" = Caenolambda jepseni2
"Barylambda jackwilsoni" = Caenolambda jepseni2 Simons 1960 pantodont
 Perissodactyla - Equidae
"Hyracotherium index" = Minippus index1
"Hyracotherium index" = Minippus index1 Cope 1873 horse