Greenwood Canyon: Late/Upper Aptian - Early/Lower Albian, Texas
collected by Slaughter, Langston, et al. 1949-1973

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Spalacotheriidae
Spalacotheroides bridwelli n. gen., n. sp. Patterson 1955
4 individuals
The holotype and 3 specimens referred by Patterson (1956): FMNH PM 1235 (right molar),PM 1133 (left molar), PM1236 (right ?M6)
Mammalia
Tribosphenida indet. McKenna 1975
Davis and Cifelli 2011 2 specimens
FMNH PM 1075 (L ultimate upper molar) and 948 (Rmx)
Mammalia - Kermackiidae
Kermackia texana Slaughter 1971
Davis and Cifelli 2011
teeth
Mammalia - Holoclemensiidae
Holoclemensia texana (Slaughter 1968)
Davis and Cifelli 2011
teeth
Mammalia - Pappotheriidae
Pappotherium pattersoni Slaughter 1965
Jacobs and Winkler 1998
described by Butler 1978
Slaughteria eruptens Butler 1978
Davis and Cifelli 2011
synonym of Pappotherium pattersoni
teeth
Mammalia
Adinodon pattersoni n. sp. Hershkovitz 1995
Jacobs and Winkler 1998
of Hershkovitz 1995 placed at "Triconodont Gulley, 2 1/2 miles SW Greenwood Canyon, Forestburg, Montague County"
Mammalia - Deltatheroida - Deltatheridiidae
Oklatheridium sp. Davis et al. 2008
Davis and Cifelli 2011
Oklatheridium minax Davis and Cifelli 2011
Davis and Cifelli 2011
teeth
Oklatheridium szalayi Davis et al. 2008
Davis and Cifelli 2011
teeth
Mammalia - Multituberculata
Paracimexomys sp. Archibald 1982
Jacobs and Winkler 1998
see Krause et al. 1990
Mammalia - Eutriconodonta - Triconodontidae
Astroconodon denisoni n. gen., n. sp. Patterson 1951
Jacobs and Winkler 1998
includes type of Patterson 1951; FMNH PM 542 (1 measurement)
Reptilia
Naomichelys sp. Hay 1908
Thurmond 1974 1 specimen
SMUSMP 62260
Reptilia - Lacertilia
Lacertilia indet. Owen 1842
Winkler et al. 1990
Reptilia - Theropoda
Theropoda indet. Marsh 1881
Winkler et al. 1990
Reptilia - Tyrannosauridae
? Deinodontidae indet. (Brown 1914)
Thurmond 1974
synonym of Tyrannosauridae
Reptilia - Dromaeosauridae
? Dromaeosauridae indet. Colbert and Russell 1969
Thurmond 1974 1 specimen
SMUSMP 62271, "deinonychid"
Reptilia
"Camptosauridae" indet. Marsh 1885
Slaughter 1982 1 individual
"camptosaur"
    = ? Tenontosaurus sp. Ostrom 1970
Winkler et al. 1990
Tenontosaurus sp. Ostrom 1970
Langston 1974 2 specimens
FMNH PR 962, 964; teeth
Sauropoda indet. Marsh 1878
Slaughter 1982 1 individual
    = Astrodon sp. Johnston 1859
Langston 1974
nomen dubium belonging to Macronaria
? Pterosauria indet. (Kaup 1834)
Zangerl and Denison 1950
"hollow bone fragments"
Reptilia - Paralligatoridae
Crocodylia indet. (Owen 1842)
Winkler et al. 1990 1 specimen
"Glen Rose form"
    = Wannchampsus sp. Adams 2014
Adams 2014
USNM 22039 (skull)
Amphibia - Temnospondyli - Albanerpetontidae
Albanerpeton arthridion Fox and Naylor 1982
Gardner 1999 12 specimens
Amphibia - Temnospondyli - Prosirenidae
Prosiren elinorae Goin and Auffenberg 1958
Winkler et al. 1990
Amphibia - Temnospondyli
Anura indet. (Fischer von Waldheim 1813)
Winkler et al. 1990
Actinopteri - Lepisosteiformes
Lepidotes sp. Agassiz 1832
Winkler et al. 1990
Chondrichthyes - Hybodontiformes - Hybodontidae
Hybodus cf. butleri Thurmond 1971
Winkler et al. 1990
recombined as Meristodonoides butleri
Chondrichthyes - Hybodontiformes - Lonchidiidae
Lissodus anitae (Thurmond 1971)
Winkler et al. 1990
original and current combination Lonchidion anitae
see common names

Geography
Country:United States State/province:Texas County:Montague
Coordinates: 33.5° North, 97.6° West (view map)
Paleocoordinates:31.4° North, 52.5° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
*Period:Early/Lower Cretaceous *Epoch:Gallic
*International age/stage:Albian
Key time interval:Late/Upper Aptian - Early/Lower Albian
Age range of interval:119.50000 - 109.90000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Trinity Formation:Antlers
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: "siliciclastic"
Includes fossils?Y
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Degree of concentration:concentrated
Size of fossils:mesofossils
Preservation of anatomical detail:good
Disassociated major elements:many
Disassociated minor elements:many
Fragmentation:occasional
Collection methods and comments
Collection methods:bulk,selective quarrying,sieve,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:FMNH,TMM
Collectors:Slaughter, Langston, et al. Collection dates:1949-1973
Taxonomic list comments:see Patterson 1951 for location details
Metadata
Also known as:SMU Loc. 21
Database number:14388
Authorizer:J. Alroy, M. Carrano, R. Benson, R. Butler, P. Mannion Enterer:J. Alroy, M. Carrano, R. Benson, R. Butler, P. Mannion
Modifier:G. Varnham Research group:vertebrate
Created:2000-05-19 00:00:00 Last modified:2022-02-28 07:53:56
Access level:the public Released:2000-05-19 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
19641.ETE B. Patterson. 1955. A symmetrodont from the Early Cretaceous of northern Texas. Fieldiana: Zoology 37:689-693 [M. Carrano/M. Carrano]

Secondary references:

52666 T. L. Adams. 2014. Small crocodyliform from the Lower Cretaceous (late Aptian) of central Texas and its systematic relationship to the evolution of Eusuchia. Journal of Paleontology 88(5):1031-1049 [P. Mannion/P. Mannion]
6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
38296 B. M. Davis and R. L. Cifelli. 2011. Reappraisal of the tribosphenidan mammals from the Trinity Group (Aptian-Albian) of Texas and Oklahoma. Acta Palaeontologica Polonica 56(3):441-462 [R. Benson/R. Benson]
26201ETE J. D. Gardner. 1999. The amphibian Albanerpeton arthridion and the Aptian-Albian biogeography of albanerpetonids. Palaeontology 42(3):529-544 [M. Carrano/M. Carrano/J. Alroy]
2008 L. L. Jacobs and D. A. Winkler. 1998. Mammals, archosaurs, and the Early to Late Cretaceous terrestrial transition in north-central Texas. In Y. Tomida, L. J. Flynn, & L. L. Jacobs (eds.), Advances in Vertebrate Paleontology and Geochronology. National Science Museum Monographs 14:253-280 [J. Alroy/J. Alroy/M. Carrano]
13937ETE W. Langston. 1974. Nonmammalian Comanchean tetrapods. In B. F. Perkins (ed.), Aspects of Trinity Division Geology. A Symposium on the Stratigraphy, Sedimentary Environments, and Fauna of the Comanche Cretaceous Trinity Division (Aptian and Albian) of Texas and Northern Mexico. Geoscience and Man 8:77-102 [M. Carrano/M. Carrano/M. Carrano]
14107ETE T. M. Lehman. 1989. Chasmosaurus mariscalensis, sp. nov., a new ceratopsian dinosaur from Texas. Journal of Vertebrate Paleontology 9(2):137-162 [M. Carrano/M. Carrano/M. Carrano]
39382 B. Patterson. 1956. Early Cretaceous mammals and the evolution of mammalian molar teeth. Fieldiana (Geology) 13:1-105 [R. Benson/R. Benson]
30650ETE B. H. Slaughter. 1982. Recovery and study of middle Cretaceous vertebrate fossils in north-central Texas. National Geographic Society Research Reports (1973) 14:617-618 [M. Carrano/M. Carrano]
56060 J. T. Thurmond. 1974. Lower vertebrate faunas of the Trinity Division on north-central Texas. In B. F. Perkins (ed.), Aspects of Trinity Division Geology. A Symposium on the Stratigraphy, Sedimentary Environments, and Fauna of the Comanche Cretaceous Trinity Division (Aptian and Albian) of Texas and Northern Mexico. Geoscience and Man 8:103-129 [M. Carrano/M. Carrano]
7600 D. A. Winkler, P. A. Murry, and L. L. Jacobs. 1990. Early Cretaceous (Comanchean) vertebrates of central Texas. Journal of Vertebrate Paleontology 10(1):95-116 [J. Alroy/J. Alroy/J. Alroy]
31081 R. Zangerl and R. H. Denison. 1950. Discovery of Early Cretaceous mammals and frogs in Texas. Science 112:61 [R. Butler/R. Butler]