Knight Station: Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Baenidae
Baena arenosa Leidy 1870
Hay 1908
AMNH 6041, AMNH expedition of 1906, partial carapace
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus browni Loomis 1905
    = Hyopsodus powellianus Cope 1884
Alroy 2002
Mammalia - Rodentia - Ischyromyidae
Paramys excavatus Loomis 1907
possibly the same as P. copei copei and/or P. copei major and/or P. excavatus excavatus from "Knight" described by Wood 1962
Acritoparamys francesi (Wood 1962)
Korth 1984
Mammalia - Primates - Microsyopidae
Cynodontomys sp. Cope 1882
    = Microsyops sp. Leidy 1872
Alroy 2002
Mammalia - Homacodontidae
Hexacodus uintensis Gazin 1952
Hexacodus pelodes Gazin 1952
Mammalia - Phenacodontidae
Phenacodus primaevus (Cope 1873)
    = Phenacodus sp. Cope 1873
Alroy 2002
Mammalia - Perissodactyla
Heptodon ventorum (Cope 1880)
    = Heptodon calciculus Cope 1880
Alroy 2002
Mammalia - Perissodactyla - Equidae
Hyracotherium vasacciense (Cope 1872)
possibly includes the type, see Granger 1908; type of "Orotherium index" is also from "Evanston"
    = Minippus index Cope 1873
Froehlich 2002
"Type locality and horizon: ‘Knight’ beds, Evanston, Wyoming."
Mammalia - Coryphodontidae
Coryphodon radians (Cope 1872)
includes "C. hamatus" and "C. semicinctus" of earlier authors and "C. anthracoideus" and "C. subquadratus" of Lucas 1998b
Coryphodon armatus (Cope 1872)
not directly listed by Gazin, but type of "C. elephantopus" is indicated to be from here
Mammalia - Esthonychidae
Esthonyx sp. Cope 1874
see common names

Geography
Country:United States State/province:Wyoming County:Uinta
Coordinates: 41.2° North, 110.5° West (view map)
Paleocoordinates:46.3° North, 94.3° West
Basis of coordinate:based on political unit
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
*Period:Tertiary
Key time interval:Wasatchian
Age range of interval:54.90000 - 50.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Wasatch
Local section:Bridg Local bed:1
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection size:24 specimens
Taxonomic list comments:in the "Knight Mbr."
said to be of "Lysite" age and in the "La Barge" horizon, below the Cathedral Bluffs Tongue; apparently the "small medial Wasatchian mammalian assemblage that includes Heptodon" from the type area of the Wasatch Fm. near Evanston of Krishtalka et al. 1987 p. 103L
"Diacodon sp." is listed by Van Houten 1945 but omitted by Gazin
"? Pelycodus sp." is listed by Gazin 1952 but omitted by Gazin 1962

"Didymictis cf. altidens" is listed by Van Houten 1945 and Gazin 1952 but omitted by Gazin 1962
Metadata
Database number:15661
Authorizer:J. Alroy, J. Marcot, E. Vlachos Enterer:J. Alroy, E. Vlachos, J. Marcot
Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2002-06-03 03:27:40
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1616. C. L. Gazin. 1962. A Further Study Of The Lower Eocene Mammalian Faunas Of Southwestern Wyoming. Smithsonian Miscellaneous Collections 144(1):1-98 [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]
53105 D. J. Froehlich. 2002. Quo vadis Eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla). Zoological Journal of the Linnean Society 134:141-256 [M. Carrano/M. Carrano/M. Carrano]
14442ETE O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568 [M. Carrano/M. Carrano/M. Carrano]
2105 W. W. Korth. 1984. Earliest Tertiary evolution and radiation of rodents in North America. Bulletin of Carnegie Museum of Natural History 24:1-71 [J. Alroy/J. Alroy/J. Marcot]