Junction (TMM 41443): Early/Lower Uintan, Texas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Pristichampsus cf. vorax (Troxell 1925)
Busbey 1986
recombined as Boverisuchus vorax
Mammalia
Stylinodon mirus Marsh 1874
Schoch 1986
    = Stylinodon sp. Marsh 1874
Alroy 2002
replaces ID of Schoch and Lucas 1981b; "S." sp. of West 1982 and Wilson 1986
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus paulus Leidy 1870
West 1982
Mammalia - Perissodactyla - Brontotheriidae
Brontotheriidae indet. (Marsh 1873)
Wilson 1977
Mammalia - Perissodactyla - Hyracodontidae
? Triplopus cf. implicatus (Cope 1873)
Wilson and Schiebout 1984
Mammalia - Perissodactyla - Hyrachyidae
? Hyrachyus cf. modestus (Leidy 1870)
Wilson and Schiebout 1984
Mammalia - Dichobunidae
Dichobunidae indet. Gill 1872
Mammalia - Protoceratidae
Leptoreodon pusillus Golz 1976
Wilson 1984
(excluding "questionably referred" specimen)
Mammalia - Rodentia - Sciuravidae
Prolapsus junctionis Wood 1973
Wood 1973
(1 measurement)
Pauromys texensis Walton 1993
Walton 1993
"Group 2" and "sp. 4" also present (3 measurements)
Mammalia - Rodentia - Cylindrodontidae
Mysops boskeyi Wood 1973
Wood 1973
    = Pareumys boskeyi Wood 1973
Alroy 2002
Mammalia - Rodentia - Ischyromyidae
Thisbemys plicatus Wood 1962
Wood 1973
(1 measurement)
    = Thisbemys corrugatus Wood 1959
Alroy 2002
Mammalia - Primates - Omomyidae
Omomys carteri Leidy 1869
West 1982
Ourayia uintensis (Osborn 1895)
West 1982
(1 measurement)
Macrotarsius sp. Clark 1941
includes "Homacodon cf. vagans" of West 1982 according to Stucky 1998, but Stucky means to refer to specimen of "Helohyus sp." figured and described by West and identity of "H. cf. vagans" specimen is unclear: Walsh 2000
    = Ourayia uintensis Osborn 1895
Williams and Kirk 2008
Mammalia - Primates - Microsyopidae
Microsyops annectens (Marsh 1872)
West 1982
Mammalia
Herpetotherium comstocki (Cope 1884)
West 1982
    = Peratherium cf. comstocki Cope 1884
Alroy 2002
Herpetotherium marsupium Troxell 1923
West 1982
see common names

Geography
Country:United States State/province:Texas County:Brewster
Coordinates: 29.2° North, 103.2° West (view map)
Paleocoordinates:31.5° North, 93.4° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Eocene
10 m.y. bin:Cenozoic 2-3
*Period:Tertiary
Key time interval:Early/Lower Uintan
Age range of interval:46.20000 - 39.70000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Devil's Graveyard Member:Lower
Local section:BuckH Local bed:2
Local order:bottom to top
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Museum repositories:TMM
Taxonomic list comments:this is Junction sensu stricto
underlies Whistler Squat
said by Prothero 1996b to be Bridgerian; Figure 2 of Wilson indicates that it is roughly at the level of the Alamo Creek Basalt because both are above the "basal Tertiary conglomerate" and below the "variegated bentonites"; the ACB is dated at 46 Ma (KA), and a tuff just below it at 46.0 +/- 1.0 Ma (KA) and 46.29 +/- 0.05 Ma (AA); latter date seems best
the following taxa are from Junction, exact locality unknown: Scenopagus priscus Centetodon pulcher ? Entomolestes sp. Nyctitherium velox cf. Pantolestes sp.
Metadata
Also known as:DUPLICATE REF 3667 or 3852
Database number:16586
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:G. Varnham Research group:vertebrate
Created:1994-07-26 00:00:00 Last modified:2022-01-28 07:01:51
Access level:the public Released:1994-07-26 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
3667. 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]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
7606 A. B. Busbey, III. 1986. Pristichampsus cf. P. vorax (Eusuchia; Pristichampsinae) from the Uintan of West Texas. Journal of Vertebrate Paleontology 6(1):101-103 [J. Alroy/J. Alroy/J. Alroy]
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]
3547 A. H. Walton. 1993. Pauromys and other small Sciuravidae (Mammalia: Rodentia) from the middle Eocene of Texas. Journal of Vertebrate Paleontology 13(2):243-261 [J. Alroy/J. Alroy/P. Wagner]
3605 R. M. West. 1982. Fossil Mammals from the Lower Buck Hill Group, Eocene of Trans-Pecos Texas: Marsupicarnivora, Primates, Taeniodonta, Condylarthra, Bunodont Artiodactyla, and Dinocerata. Pearce-Sellards Series 35:1-20 [J. Alroy/J. Alroy/J. Marcot]
29561 B. A. Williams and E. C. Kirk. 2008. New Uintan primates from Texas and their implications for North American patterns of species richness during the Eocene. Journal of Human Evolution 55(6):927-941 [J. Alroy/J. Alroy]
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]
3666 J. A. Wilson. 1984. Vertebrate Faunas 49 to 36 Million Years Ago and Additions to the Species of Leptoreodon (Mammalia: Artiodactyla) Found in Texas. Journal of Vertebrate Paleontology 4(2):199-207 [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]
3734 A. E. Wood. 1973. Eocene Rodents, Pruett Formation, Southwest Texas; Their Pertinence to the Origin of the South African Caviomorpha. Pearce-Sellards Series 20 [J. Alroy/J. Alroy/J. Ju]