Big Red Horizon (TMM 40203): Duchesnean, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Perissodactyla - Brontotheriidae
Menodus bakeri Stovall 1948
Wilson 1977
recombined as Menops bakeri
Mammalia - Perissodactyla - Equidae
Mesohippus texanus McGrew 1971
McGrew 1971
additional Mesohippus sp. also present
Mammalia - Perissodactyla - Hyracodontidae
Hyracodon primus Peterson 1934
Wilson and Schiebout 1984 6 specimens
(4 measurements)
    = Hyracodon medius Peterson 1934
Alroy 2002
Mammalia - Protoceratidae
Poabromylus minor Wilson 1974
Wilson 1974
recombined as Pseudoprotoceras minor
(1 measurement)
Heteromeryx dispar Matthew 1905
Wilson 1974
(5 measurements)
Mammalia - Leptomerycidae
Leptomeryx defordi Wilson 1974
Wilson 1974
recombined as Hendryomeryx defordi
Mammalia - Agriochoeridae
Protoreodon pumilus (Marsh 1875)
Wilson 1971
Mammalia - Carnivora - Amphicyonidae
Daphoeninae indet. Hunt 1998
Gustafson 1986
Mammalia - Creodonta - Hyaenodontidae
Hyaenodon montanus Douglass 1902
Gustafson 1986
Mammalia - Rodentia - Ischyromyidae
Leptotomus gigans Wood 1974
recombined as Quadratomus gigans
(1 measurement)
Mammalia - Rodentia - Eutypomyidae
Eutypomys inexpectatus Wood 1974
Mammalia - Rodentia - Cylindrodontidae
Pseudocylindrodon neglectus Burke 1935
see common names

Geography
Country:United States State/province:Texas County:Presidio
Coordinates: 29.9° North, 104.2° West (view map)
Paleocoordinates:31.6° North, 95.9° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
10 m.y. bin:Cenozoic 3
*Period:Tertiary
Key time interval:Duchesnean
Age range of interval:39.70000 - 37.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Vieja
Local section:Vieja Local bed:4
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection excludes:some genera
Museum repositories:TMM
Taxonomic list comments:list probably complete
"5 to approximately 50 feet above the base of the Chambers Tuff" = Big Red Horizon: Wilson 1971a
"Poebrotherium franki" is NOT present: Wilson 1974 gives locality as "TMM 40203" but means TMM 40283 (see)
Metadata
Database number:16830
Authorizer:J. Alroy Enterer:J. Alroy
Research group:vertebrate
Created:1994-07-26 00:00:00 Last modified:2002-06-03 03:27:41
Access level:the public Released:1994-07-26 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
3735. A. E. Wood. 1974. Early Tertiary vertebrate faunas, Vieja Group Trans-Pecos Texas: Rodentia. Texas Memorial Museum Bulletin 21:1-112 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1758 E. P. Gustafson. 1986. Carnivorous mammals of the Late Eocene and Early Oligocene of Trans-Pecos Texas. Texas Memorial Museum Bulletin 33:1-66 [J. Alroy/J. Alroy/J. Marcot]
2524 P. O. McGrew. 1971. Epihippus from the Vieja Group, Trans-Pecos Texas. Pearce-Sellards Series 18 [J. Alroy/J. Alroy/J. Ju]
3661 J. A. Wilson. 1971. Early Tertiary vertebrate faunas, Vieja Group. Trans-Pecos Texas: Agriochoeridae and Merycoidodontidae. Texas Memorial Museum Bulletin 18:1-83 [J. Alroy/J. Alroy/J. Alroy]
3663 J. A. Wilson. 1974. Early Tertiary Vertebrate Faunas, Vieja Group and Buck Hill Group, Trans-Pecos Texas: Protoceratidae, Camelidae, Hypertragulidae. Bulletin of the Texas Memorial Museum 23:1-24 [J. Alroy/J. Alroy/J. Marcot]
3664 J. A. Wilson. 1977. Early Tertiary Vertebrate Faunas Big Bend Area Trans-Pecos Texas: Brontotheriidae. Pearce-Sellards Series 25 [J. Alroy/J. Alroy/J. Ju]
3670 J. A. Wilson and J. A. Schiebout. 1984. Early Tertiary Vertebrate Faunas, Trans-Pecos Texas: Ceratomorpha less Amynodontidae. Pearce-Sellards Series 39:1-47 [J. Alroy/J. Alroy/J. Marcot]