SC-4: Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Leptictidae
cf. Prodiacodon sp. Matthew 1929
Mammalia - Apatemyidae
Apatemys sp. Marsh 1872
    = Apatemyidae indet. Matthew 1909
Alroy 2002
Mammalia - Coryphodontidae
Coryphodon sp. (Owen 1845)
original and current combination Lophiodon (Coryphodon)
Mammalia - Esthonychidae
Esthonyx spatularius Cope 1880
Mammalia
Esthonyx grangeri Simpson 1937
recombined as Azygonyx grangeri
Mammalia - Condylarthra - Hyopsodontidae
Hyopsodus sp. Leidy 1870
Mammalia - Macroscelidea - Apheliscidae
Apheliscus sp. Cope 1875
    = Apheliscus chydaeus Gingerich 1994
Gingerich 1994
Haplomylus speirianus (Cope 1880)
Mammalia - Acreodi - Mesonychidae
Dissacus sp. Cope 1881
Mammalia - Acreodi - Hapalodectidae
Hapalodectes anthracinus Zhou and Gingerich 1991
Zhou and Gingerich 1991
(1 measurement)
Mammalia - Phenacodontidae
Ectocion osbornianus (Cope 1882)
Phenacodus brachypternus Cope 1882
    = Copecion cf. brachypternus Cope 1882
Alroy 2002
Phenacodus primaevus (Cope 1873)
    = Phenacodus sp. Cope 1873
Alroy 2002
Phenacodus vortmani (Cope 1880)
Mammalia - Perissodactyla - Equidae
Hyracotherium sp. Owen 1841
    = Hyracotherium grangeri Gingerich 1989
Gingerich 1991
recombined as Sifrhippus grangeri
Mammalia - Perissodactyla
Homogalax sp. Hay 1899
    = Cardiolophus radinskyi Gingerich 1991
Gingerich 1991
Mammalia - Procreodi - Arctocyonidae
Thryptacodon antiquus Matthew and Granger 1915
Mammalia - Diacodexeidae
Diacodexis metsiacus (Cope 1882)
    = Diacodexis sp. Cope 1882
Alroy 2002
Mammalia - Viverravidae
Viverravus acutus Matthew and Granger 1915
confirmed by Polly 1997, Polly et al. 2006
Viverravus politus Matthew and Granger 1915
confirmed by Polly 1997
Didymictis leptomylus Cope 1880
Polly 1997
Didymictis protenus (Cope 1874)
confirmed by Polly 1997
Mammalia
Uintacyon cf. massetericus (Cope 1882)
Mammalia - Metacheiromyidae
Palaeanodon nievelti Gingerich 1989
Gingerich 1989
Mammalia - Creodonta - Oxyaenidae
Oxyaena sp. Cope 1874
    = Oxyaenidae indet. Cope 1877
Alroy 2002
Mammalia - Creodonta - Hyaenodontidae
Prototomus deimos Gingerich and Deutsch 1989
Gingerich and Deutsch 1989
Gingerich and Deutsch 1989
Mammalia - Rodentia - Ischyromyidae
cf. Microparamys sp. Wood 1959
Paramys sp. Leidy 1871
Mammalia - Dermoptera
Plagiomene multicuspis Matthew 1918
    = Plagiomene cf. accola Rose 1981
MacPhee et al. 1989
Mammalia - Primates - Paromomyidae
Ignacius graybullianus Bown and Rose 1976
Bloch and Silcox 2001
new specimen
Phenacolemur praecox Matthew 1915
    = Phenacolemurinae indet. Simpson 1955
Alroy 2002
Mammalia - Primates - Omomyidae
Teilhardina americana Bown 1976
Bown and Rose 1987
Mammalia - Primates - Notharctidae
Pelycodus ralstoni Matthew 1915
(6 measurements)
    = Cantius ralstoni Matthew 1915
Butler et al. 1981
"Pelycodus sp."
Mammalia - Primates - Micromomyidae
Tinimomys graybulliensis Szalay 1974
Beard and Houde 1989
Chalicomomys antelucanus n. gen., n. sp. Beard and Houde 1989
Beard and Houde 1989
type is from a USNM locality "in or very near" SC-4
    = Micromomys antelucanus Beard and Houde 1989
Rose and Bown 1996
original and current combination Chalicomomys antelucanus
Mammalia - Primates - Microsyopidae
Microsyops sp. Leidy 1872
    = Arctodontomys wilsoni Szalay 1969
Gunnell 1985
Mammalia - Multituberculata - Eucosmodontidae
Neoliotomus ultimus (Granger and Simpson 1928)
original and current combination Eucosmodon ultimus
see common names

Geography
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
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:Willwood Member:Wa-1 Zone
Local section:Clark Local bed:1570 m
Local order:bottom to top
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Collection methods and comments
Collection size:398 specimens
Reason for describing collection:paleoecologic analysis
Museum repositories:UMMP,USNM
Taxonomic list comments:1570 m level
Chron 24R: Butler et al. 1981
taxa reported by Bear and Houde 1989 are from a nodule "in or very near... SC-4"
Metadata
Also known as:Houde Locality 8
Database number:15729
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1993-02-18 00:00:00 Last modified:2009-03-16 15:42:11
Access level:the public Released:1993-02-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
2953. K. D. Rose. 1981. The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary. University of Michigan Papers on Paleontology 26:1-197 [J. Alroy/J. Alroy/P. Mannion]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1042 K. C. Beard and P. Houde. 1989. An unusual assemblage of diminutive plesiadapiforms (Mammalia, ?Primates) from the early Eocene of the Clark's Fork Basin, Wyoming. Journal of Vertebrate Paleontology 9(4):388-399 [J. Alroy/J. Alroy/K. Beard]
6073 J. I. Bloch and M. T. Silcox. 2001. New basicrania of Paleocene-Eocene Ignacius: re-evaluation of the plesiadapiform-dermopteran link. American Journal of Physical Anthropology 116:184-198 [J. Alroy/J. Alroy/J. Alroy]
1123 T. M. Bown and K. D. Rose. 1987. Patterns of Dental Evolution in Early Eocene Anaptomorphine Primates (Omomyidae) from the Bighorn Basin, Wyoming. Paleontological Society Memoir 23:1-162 [J. Alroy/J. Alroy/J. Ju]
1163 R. F. Butler, P. D. Gingerich, and E. H. Lindsay. 1981. Magnetic Polarity Stratigraphy and Biostratigraphy of Paleocene and Lower Eocene Continental Deposits, Clark's Fork Basin, Wyoming. Journal of Geology 89 [J. Alroy/J. Alroy/J. Ju]
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]
1660 P. D. Gingerich. 1991. Systematics and Evolution of Early Eocene Perissodactyla (Mammalia) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(8):181-213 [J. Alroy/J. Alroy/P. Mannion]
1662 P. D. Gingerich. 1994. New species of Apheliscus, Haplomylus, and Hyopsodus (Mammalia, Condylarthra) from the late Paleocene of southern Montana and early Eocene of northwestern Wyoming. Contributions from the Museum of Paleontology, University of Michigan 29(6):119-134 [J. Alroy/J. Alroy/K. Beard]
1666 P. D. Gingerich and H. A. Deutsch. 1989. Systematics and Evolution of Early Eocene Hyaenodontidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(13):327-391 [J. Alroy/J. Alroy/J. Marcot]
1728 G. F. Gunnell. 1985. Systematics of Early Eocene Microsyopinae (Mammalia, Primates) in the Clark's Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(2):51-71 [J. Alroy/J. Alroy/M. Uhen]
2388 R. D. E. MacPhee, M. Cartmill, and K. D. Rose. 1989. Craniodental morphology and relationships of the supposed Eocene dermopteran Plagiomene (Mammalia). Journal of Vertebrate Paleontology 9(3):329-349 [J. Alroy/J. Alroy/M. Uhen]
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]
29421 P. D. Polly, G. D. Wesley-Hunt, R. E. Heinrich, D. Davis, and P. Houde. 2006. Earliest known carnivoran auditory bulla and support for a recent origin of crown-group Carnivora (Eutheria, Mammalia). Palaeontology 49(5):1019-1027 [J. Alroy/J. Alroy/J. Alroy]
2966 K. D. Rose and T. M. Bown. 1996. A new plesiadapiform (Mammalia: Plesiadapiformes) from the early Eocene of the Bighorn Basin, Wyoming. Annals of Carnegie Museum 65(3):305-321 [J. Alroy/J. Alroy/M. Uhen]
3801 X. Zhou and P. D. Gingerich. 1991. New Species of Hapalodectes (Mammalia, Mesonychia) from the Early Wasatchian, Early Eocene of Northwestern Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(9):215-220 [J. Alroy/J. Alroy/P. Mannion]