Ash Spring (Eocene of the United States)

Also known as TMM 40283

Where: Jeff Davis County, Texas (30.7° N, 104.0° W: paleocoordinates 32.1° N, 96.4° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Vieja Group, Chadronian (37.2 - 33.9 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Reposited in the TMM

Primary reference: J. M. Harris. 1967. Toxotherium (Mammalia: Rhinocerotoidea) from Western Jeff Davis County, Texas. Pearce-Sellards Series 9 [J. Alroy/J. Alroy/J. Ju]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 16894: authorized by John Alroy, entered by John Alroy on 26.07.1994, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• Ash Spring list of Wilson 1977b includes all and only taxa from TMM 40283; I believe there are no other TMM localities in Jeff Davis Co.
stratigraphic level uncertain as there are no useable marker beds in the immediate area, but supposed on faunistic grounds to be the youngest fauna in the Vieja sequence
Stevens and Stevens 1996 suggest that this is Orellan
Show authors, comments, and common names
Mammalia
 Placentalia -
Carnivora indet.1
Carnivora indet.1 Bowdich 1821 carnivoran
 Artiodactyla - Entelodontidae
Archaeotherium cf. mortoni7
Archaeotherium cf. mortoni7 Leidy 1850 even-toed ungulate
see Wilson 1971b
 Artiodactyla - Camelidae
"Poebrotherium franki" = Stevenscamelus franki7
"Poebrotherium franki" = Stevenscamelus franki7 Wilson 1974 camel
listed by Wilson 1977b, but locality given as "TMM 40203" by Wilson 1974; this is surely a lapsus as TMM 40203 is in the Big Red Horizon
 Artiodactyla - Merycoidodontidae
"Merycoidodon culbertsoni" = Merycoidodon culbertsonii6
"Merycoidodon culbertsoni" = Merycoidodon culbertsonii6 Leidy 1848 oreodont
 Artiodactyla - Oromerycidae
Oromerycidae indet.7
Oromerycidae indet.7 Gazin 1955 even-toed ungulate
two species: presumably includes Harris' "Eotylopus"
 Artiodactyla - Praetragulidae
Parvitragulus priscus2
Parvitragulus priscus2 Emry 1978 ruminant
 Perissodactyla - Rhinocerotidae
Rhinocerotidae indet.7
Rhinocerotidae indet.7 Gray 1821 rhinoceros
presumably = "? Prothyracodon"
 Perissodactyla -
? Toxotherium sp.8
? Toxotherium sp.8 Wood 1961 odd-toed ungulate
 Rodentia -
Meliakrouniomys wilsoni n. sp.3
Meliakrouniomys wilsoni n. sp.3 Harris and Wood 1969 rodent
 Rodentia - Cylindrodontidae
Pseudocylindrodon cf. texanus7
Pseudocylindrodon cf. texanus7 Wood 1974 rodent
see Wood 1974
 Rodentia - Ischyromyidae
Ischyromys sp.4
Ischyromys sp.4 Leidy 1856 rodent
Gastropoda
 Stylommatophora - Camaenidae
Pleurodonte (Pleurodonte) wilsoni5
1Alroy 2002; 2Emry 1978; 3Harris and Wood 1969; 4Heaton 1996; 5Roth 1984; 6Stevens and Stevens 1996; 7Wilson 1977; 8Wilson and Schiebout 1984