Eastern Tornillo Flat: Torrejonian, Texas
collected by J. Wilson, M. McKenna, G. Whitaker 1952, 1962–1963
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Multituberculata
- Neoplagiaulacidae
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Parectypodus sloani
Schiebout 1974
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Schiebout 1974 | |||||||||
Ectypodus musculus
Matthew and Granger 1921
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Schiebout 1974 | |||||||||
Mesodma cf. pygmaea
Sloan 1987
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Krause 1977 | |||||||||
Mimetodon silberlingi
(Simpson 1935)
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Schiebout 1974 | |||||||||
Mammalia
- Multituberculata
- Ptilodontidae
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cf. Mimetodon douglassi
(Simpson 1935)
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1 specimen | |||||||||
BEG 40147-15 | ||||||||||
= Neoplagiaulax douglassi
Simpson 1935
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Schiebout 1974 | |||||||||
recombined as Baiotomeus douglassi | ||||||||||
Ptilodus mediaevus
Cope 1881
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Schiebout 1974 | |||||||||
(1 measurement) | ||||||||||
Mammalia
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Psittacotherium cf. multifragum
Cope 1882
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5 specimens | |||||||||
BEG 40147-2, 3, 3a, 3b, 7 | ||||||||||
= Psittacotherium multifragum
Cope 1882
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Schoch 1986 | |||||||||
Mammalia
- Mixodectidae
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Mixodectes malaris
(Cope 1884)
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Williamson 1996 | |||||||||
Mammalia
- Primates
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Palaechthon cf. woodi
Gazin 1971
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Williamson 1996 | |||||||||
apparently "Navajovius kohlhaasae" | ||||||||||
Mammalia
- Periptychidae
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Periptychus carinidens
Cope 1881
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3 specimens | |||||||||
BEG 40417-4, 17 | ||||||||||
= Periptychus superstes
Matthew 1935
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Schiebout 1974 | |||||||||
= Periptychus sp.
Cope 1881
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Williamson and Lucas 1993 | |||||||||
probably a new species according to Williamson 1996 | ||||||||||
Mammalia
- Phenacodontidae
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? Tetraclaenodon puercensis
(Cope 1881)
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3 specimens | |||||||||
BEG 40147-19 | ||||||||||
= Phenacodus cf. matthewi
Simpson 1935
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Schiebout 1974 | |||||||||
= Phenacodus bisonensis
Gazin 1956
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Thewissen 1990 | |||||||||
probably "Tetraclaenodon puercensis" of Williamson 1996, which seems to be repeated from Schiebout 1986 | ||||||||||
Mammalia
- Condylarthra
- Chriacidae
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Prothryptacodon sp.
Simpson 1935
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Williamson 1996 | |||||||||
see common names |
Geography
Country: | United States | State/province: | Texas | County: | Brewster |
Coordinates: | 29.4° North, 103.1° West (view map) | ||||
Paleocoordinates: | 35.3° North, 84.7° West | ||||
Basis of coordinate: | estimated from map | ||||
Geographic resolution: | small collection |
Time
Period: | Paleogene | Epoch: | Paleocene |
Stage: | Danian | 10 m.y. bin: | Cenozoic 1 |
*Period: | Tertiary | ||
Key time interval: | Torrejonian | ||
Age range of interval: | 63.30000 - 61.70000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Geological group: | Tornillo | Formation: | Black Peaks | ||
Local section: | BPeak | Local bed: | 3 | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: 140 ft above base of formation; Torrejonian based on Leslie et al. (2018) |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection methods: | surface (in situ),field collection | ||
Reason for describing collection: | general faunal/floral analysis | ||
Museum repositories: | TMM | ||
Collectors: | J. Wilson, M. McKenna, G. Whitaker | Collection dates: | 1952, 1962–1963 |
Taxonomic list comments:43 m level of Fm. new records of Williamson 1996 were described by Schiebout 1986 (Ph.D. thesis) |
Metadata
Also known as: | T2; TMM 40147; Middle Peak; Alligator Alley | ||
Database number: | 14948 | ||
Authorizer: | J. Alroy, M. Carrano | Enterer: | J. Alroy, M. Carrano |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 1993-02-18 00:00:00 | Last modified: | 2022-06-30 09:46:46 |
Access level: | the public | Released: | 1993-02-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
68428. | 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] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
2155 | D. W. Krause. 1977. Paleocene Multituberculates (Mammalia) of the Roche Percée Local Fauna, Ravenscrag Formation, Saskatchewan, Canada. Palaeontographica Abteilung A 159:1-36 [J. Alroy/J. Alroy/M. Uhen] | |
82038 | T. M. Lehman, S. L. Wick, H. L. Beatty, W. R. Straight, and J. R. Wagner. 2018. Stratigraphy and depositional history of the Tornillo Group (Upper Cretaceous–Eocene) of West Texas. Geosphere 14(5):2206-2244 [M. Carrano/M. Carrano] | |
3024 | J. A. Schiebout. 1974. Vertebrate paleontology and paleoecology of Paleocene Black Peaks Formation, Big Bend National Park, Texas. Texas Memorial Museum Bulletin 24:1-88 [J. Alroy/J. Alroy/M. Uhen] | |
3053 | R. M. Schoch. 1986. Systematics, Functional Morphology and Macroevolution of the Extinct Mammalian Order Taeniodonta. Peabody Museum of Natural History Bulletin 42:1-320 [J. Alroy/J. Alroy/M. Uhen] | |
3401 | J. G. M. Thewissen. 1990. Evolution of Paleocene and Eocene Phenacodontidae (Mammalia, Condylarthra). University of Michigan Papers on Paleontology 29:1-107 [J. Alroy/J. Alroy/P. Mannion] | |
3646 | T. E. Williamson. 1996. The beginning of the age of mammals in the San Juan Basin, New Mexico; biostratigraphy and evolution of Paleocene mammals of the Nacimiento Formation. New Mexico Museum of Natural History and Science Bulletin 8:1-141 [J. Alroy/J. Alroy/P. Mannion] | |
3649 | T. E. Williamson and S. G. Lucas. 1993. Paleocene vertebrate paleontology of the San Juan Basin, New Mexico. New Mexico Museum of Natural History Bulletin 2:105-136 [J. Alroy/J. Alroy/M. Uhen] |