PBDB Collection

Cotter Channels (Eocene of the United States)

Also known as Horseshoe Stone Corral or Needle Creek (TMM 41853); TMM 42151
DUPLICATE REF 3667 or 3852

Where: Brewster County, Texas (29.2° N, 103.2° W: paleocoordinates 30.9° N, 95.0° W)

• coordinate based on political unit

When: Bandera Mesa Member (Devil's Graveyard Formation), Duchesnean (39.7 - 37.0 Ma)

• said to be late Duchesnean

Environment/lithology: terrestrial

Reposited in the TMM

Primary reference: J. A. Wilson. 1986. Stratigraphic Occurrence and Correlation of Early Tertiary Vertebrate Faunas, Trans-Pecos Texas: Agua Fria-Green Valley Areas. Journal of Vertebrate Paleontology 6(4):350-373 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 16838: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• although this is close to the county line, the ranch is shown to be in Brewster County by Stevens et al. 1984
overlies Middle Mbr. and underlies Dogie Creek; at same level as Skyline

Show authors, comments, and common names

Gastropoda
- Helminthoglyptidae	Lysinoe breedlovei² Lysinoe breedlovei² Roth 1984 snail
Mammalia
Artiodactyla - Agriochoeridae	Protoreodon petersoni Protoreodon petersoni Gazin 1955 agriochoerid DUPLICATE REF 3667 or 3852
Artiodactyla - Hypertragulidae	Hypertragulus cf. heikeni Hypertragulus cf. heikeni Ferrusquia-Villafranca 1969 ruminant DUPLICATE REF 3667 or 3852
Perissodactyla - Amynodontidae	Amynodontopsis bodei Amynodontopsis bodei Stock 1933 odd-toed ungulate TMM 41853: Wilson and Schiebout 1981 DUPLICATE REF 3667 or 3852
Perissodactyla - Brontotheriidae	Duchesneodus uintensis¹ Duchesneodus uintensis¹ Peterson 1931 brontothere
Rodentia - Ischyromyidae	Mytonomys robustus Mytonomys robustus Peterson 1919 rodent DUPLICATE REF 3667 or 3852

¹Alroy 2002; ²Roth 1984