SC-67: Wasatchian, Wyoming

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Pleurocereidae indet.
Gastropoda - Urocoptidae
Holospira sp. Martens 1860
Actinopteri - Amiiformes - Amiidae
Amia sp. Linnaeus 1766
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus sp. Agassiz 1843
Reptilia - Testudines
Chelonia indet. (Latreille 1800)
synonym of Testudines
"very large turtles"
cf. Plastomenus sp. Cope 1873
Reptilia - Testudines - Geoemydidae
Echmatemys sp. Hay 1906
(1 measurement)
Reptilia - Avetheropoda
Aves indet. Linnaeus 1758
Reptilia - Crocodylia
Leidyosuchus sp. Lambe 1907
    = Crocodylia indet. Owen 1842
Alroy 2007
Crocodylia indet. (Owen 1842)
Reptilia - Alligatoridae
Allognathosuchus sp. Mook 1921
Reptilia - Squamata - Anguidae
Melanosaurus maximus Gilmore 1928
Reptilia - Squamata
Lacertilia indet. Owen 1842
Mammalia - Primates - Microsyopidae
cf. Niptomomys sp. McKenna 1960
probably OK because Gingerich would have been aware of Gunnell 1989
Arctodontomys wilsoni (Szalay 1969)
Mammalia - Primates - Notharctidae
Cantius torresi Gingerich 1986
(1 measurement)
Mammalia - Primates - Paromomyidae
Phenacolemur praecox Matthew 1915
    = Phenacolemurinae indet. Simpson 1955
Alroy 2002
Mammalia - Coryphodontidae
Coryphodon sp. Owen 1845
    = Coryphodon eocaenus Owen 1846
Uhen and Gingerich 1995
Mammalia - Rodentia - Ischyromyidae
Paramys taurus Korth 1984
Acritoparamys atwateri (Loomis 1907)
Mammalia - Rodentia - Paramyidae
Acritoparamys atavus (Jepsen 1937)
    = Paramyidae indet. Miller and Gidley 1918
Alroy 2002
Mammalia - Perissodactyla - Equidae
Hyracotherium sandrae Gingerich 1989
recombined as Sifrhippus sandrae
Hyracotherium grangeri Gingerich 1989
recombined as Sifrhippus grangeri
Mammalia - Creodonta - Oxyaenidae
Palaeonictis sp. de Blainville 1842
    = Palaeonictis wingi Chester et al. 2010
Chester et al. 2010
Dipsalidictis platypus n. sp. Matthew and Granger 1915
Mammalia - Viverravidae
Didymictis leptomylus Cope 1880
    = Didymictis proteus Polly 1997
Polly 1997
Viverravus politus Matthew and Granger 1915
confirmed by Polly 1997
Viverravus bowni Gingerich 1987
    = Viverravus acutus Matthew and Granger 1915
Polly 1997
Miacis winkleri Gingerich 1983
recombined as Gracilocyon winkleri
Mammalia - Metacheiromyidae
Palaeanodon nievelti Gingerich 1989
Mammalia - Ernanodontidae
cf. Asiabradypus sp. Nessov 1987
Mammalia - Macroscelidea - Amphilemuridae
Macrocranion junnei n. sp. Smith et al. 2002
Smith et al. 2002
(4 measurements)
Ectoganus bighornensis Schoch 1981
Mammalia - Trogontia - Esthonychidae
Azygonyx sp. Gingerich 1989
    = Esthonyx sp. Cope 1874
Alroy 2002
Esthonyx spatularius Cope 1880
Azygonyx gunnelli Gingerich 1989
    = Esthonyx gunnelli Gingerich 1989
Alroy 2002
Mammalia - Arctocyonidae
Princetonia yalensis Gingerich 1989
Chriacus badgleyi Gingerich 1989
Mammalia - Ungulata - Hyopsodontidae
Hyopsodus loomisi McKenna 1960
Mammalia - Ungulata - Diacodexeidae
Diacodexis ilicis Gingerich 1989
Mammalia - Ungulata - Phenacodontidae
Ectocion osbornianus (Cope 1882)
Ectocion parvus Granger 1915
Copecion davisi Gingerich 1989
described by Thewissen 1990
Phenacodus cf. intermedius Granger 1915
    = Phenacodus vortmani Cope 1880
Thewissen 1990
Mammalia - Acreodi - Mesonychidae
Dissacus praenuntius Matthew and Granger 1915
Mammalia - Hyaenodonta
Prolimnocyon eerius Gingerich 1989
(3 measurements)
Mammalia - Hyaenodonta - Hyaenodontidae
Acarictis ryani Gingerich and Deutsch 1989
Prototomus deimos Gingerich and Deutsch 1989
Arfia junnei Gingerich 1989
Mimoperadectes labrus Bown and Rose 1979
Mammalia - Multituberculata - Neoplagiaulacidae
Ectypodus tardus (Jepsen 1940)
Magnoliopsida - Urticales - Ulmaceae
Celtis phenacodorum
see common names

Country:United States State/province:Wyoming County:Park
Coordinates: 44.3° North, 109.0° West (view map)
Paleocoordinates:49.2° North, 91.9° West
Basis of coordinate:based on political unit
Geographic resolution:small collection
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Wasatchian
Age range of interval:55.80000 - 50.30000 m.y. ago
* legacy (obsolete) database fields
Local section:Clark Local bed:1520 m
Local order:bottom to top
Lithology and environment
Environment:terrestrial indet.
Modes of preservation:body
Collection methods and comments
Collection size:255 specimens
Reason for describing collection:general faunal/floral analysis
Museum repositories:UMMP
Taxonomic list comments:supersedes list of Gingerich 1982a
this and other Wa-0 sites are immediately above the Paleocene-Eocene carbon isotope excursion horizon, tentatively dated by Norris and Rohl 1999 at 54.96 Ma on the basis of astronomical tuning of the GMPTS
Chron 24R: Butler et al. 1981
Database number:15759
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2006-09-13 00:31:07
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:

1657. P. D. Gingerich. 1989. New earliest Wasatchian mammalian fauna from the Eocene of northwestern Wyoming: composition and diversity in a rarely sampled high-floodplain assemblage. University of Michigan Papers on Paleontology 28:1-97 [J. Alroy/J. Alroy/J. Alroy]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Uhen]
19636 J. Alroy. 2007. Synonymies and reidentifications of North American fossil vertebrates and so forth. [J. Alroy/J. Alroy]
34419 S. G. B. Chester, J. I. Bloch, R. Secord and D. M. Boyer. 2010. A new small-bodied species of Palaeonictis (Creodonta, Oxyaenidae) from the Paleocene-Eocene thermal maximum. Journal of Mammalian Evolution 17(4):227-243 [J. Alroy/J. Alroy/J. Alroy]
2787 P. D. Polly. 1997. Ancestry and Species Definition in Paleontology: A Stratocladistic Analysis of Paleocene-Eocene Viverravidae (Mammalia, Carnivora) from Wyoming. Contributions from the Museum of Paleontology, University of Michigan 30(1):1-53 [J. Alroy/J. Alroy/M. Uhen]
7665 T. Smith, J. I. Bloch, S. G. Strait and P. D. Gingerich. 2002. New species of Macrocranion (Mammalia, Lipotyphla) from the earliest Eocene of North America and its biogeographic implications. Contributions from the Museum of Paleontology, University of Michigan 30(14):373-384 [J. Alroy/J. Alroy/J. Alroy]
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]
3476 M. D. Uhen and P. D. Gingerich. 1995. Evolution of Coryphodon (Mammalia, Pantodonta) in the late Paleocene and early Eocene of Northwestern Wyoming. Contributions from the Museum of Paleontology, University of Michigan 29(10):259-289 [J. Alroy/J. Alroy/M. Uhen]