PBDB Collection

West Alheit Pocket: Wasatchian, Colorado

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Multituberculata - Neoplagiaulacidae

	Ectypodus tardus (Jepsen 1940)	Krause 1982

	Parectypodus childei (Kühne 1969)
	= Parectypodus lunatus Krause 1982	Krause 1982
	replaces ID of Sloan 1981
Mammalia - Multituberculata - Eucosmodontidae

	Neoliotomus ultimus (Granger and Simpson 1928)
Mammalia - Leptictidae

	Palaeictops tauricinerei (Jepsen 1930)
	= cf. Prodiacodon tauricinerei Jepsen 1930	Alroy 2002

	Didelphodus absarokae (Cope 1881)
Mammalia - Apatemyidae

	Apatemys sp. Marsh 1872
	= Labidolemur kayi Simpson 1929	Gunnell 1989
Mammalia - Macroscelidea - Amphilemuridae

	Entomolestes nitens Matthew 1918
	= cf. Macrocranion nitens Matthew 1918	Alroy 2002
Mammalia - Macroscelidea - Apheliscidae

	Haplomylus speirianus (Cope 1880)

	Apheliscus sp. Cope 1875	Rose 1981
	: "A. nitidus" of McKenna
Mammalia - Condylarthra - Hyopsodontidae

	Hyopsodus simplex Loomis 1905	Redline 1997
	CM 953

	Hyopsodus loomisi McKenna 1960
	includes "H. miticulus" according to Gingerich 1989, but see Gunnell 1989, Redline 1997; also at CM 953: Redline 1997
Mammalia - Nyctitheriidae

	? Nyctitherium sp. Marsh 1872
	definitely not Marsholestes
Mammalia - Geolabididae

	Metacodon sp. Clark 1936
	= Centetodon sp. Marsh 1872	Alroy 2002

	Didelphodus ventanus White 1952
	= Didelphodus altidens Marsh 1872	Alroy 2002
Mammalia - Pantolestidae

	Palaeosinopa didelphoides (Cope 1881)
	= Palaeosinopa incerta Bown and Schankler 1982	Bown and Schankler 1982
Mammalia

	Leptacodon jepseni n. sp. McKenna 1960
	= Dartonius jepseni McKenna 1960	Alroy 2002

	Miacis exiguus Matthew and Granger 1915
	probably OK, see Gingerich 1983a
Mammalia - Viverravidae

	Didymictis protenus (Cope 1874)
	= Didymictis leptomylus Cope 1880	Polly 1997

	Viverravus acutus Matthew and Granger 1915
Mammalia - Creodonta

	Prototomus viverrinus Cope 1874
	= Creodonta indet. Cope 1875	Gingerich and Deutsch 1989
	could be Prolimnocyon atavus; not discussed by Polly 1993
Mammalia - Creodonta - Hyaenodontidae

	cf. Acarictis ryani Gingerich and Deutsch 1989	Polly 1993

	Sinopa sp. Leidy 1871
	= Prototomus martis Gingerich and Deutsch 1989	Polly 1993
Mammalia - Creodonta - Oxyaenidae

	Oxyaena sp. Cope 1874
	= Dipsalidictis transiens Matthew and Granger 1915	Gunnell and Gingerich 1991
Mammalia - Phenacodontidae

	Phenacodus intermedius Granger 1915

	Phenacodus matthewi Simpson 1935
	= Phenacodus vortmani Cope 1880	Thewissen 1990

	Ectocion osbornianus (Cope 1882)	Gunnell 1989

	Phenacodus brachypternus Cope 1882
	= Copecion ? brachypternus Cope 1882	Alroy 2002
	also listed by West 1971
Mammalia - Perissodactyla

	Homogalax primaevus (Wortman 1896)
	= Cardiolophus radinskyi Gingerich 1991	Gingerich 1991
Mammalia - Perissodactyla - Equidae

	Hyracotherium angustidens (Cope 1875)
	= Hyracotherium sp. Owen 1841	Alroy 2002
	= Arenahippus grangeri Gingerich 1989	Froehlich 2002
Mammalia - Diacodexeidae

	Diacodexis metsiacus (Cope 1882)
	= Diacodexis primus Krishtalka and Stucky 1985	Krishtalka and Stucky 1985

	Bunophorus robustus (Sinclair 1914)	Stucky and Krishtalka 1990
	apparently described by McKenna as "Wasatchia sp.," but not on his list
Mammalia - Rodentia - Ischyromyidae

	Paramys sp. Leidy 1871
	forms "A" and "B"
Mammalia - Primates - Omomyidae

	Tetonius homunculus (Cope 1882)
	= Tetonius matthewi Bown and Rose 1987	Bown and Rose 1987

	Anemorhysis minutus (Loomis 1906)
	= Tetonius mckennai n. sp. Bown and Rose 1987	Bown and Rose 1987
Mammalia - Primates - Notharctidae

	Pelycodus mckennai Gingerich and Simons 1977
	= Cantius mckennai Gingerich and Simons 1977	Gingerich and Simons 1977
	"P. ralstoni"
Mammalia - Primates - Paromomyidae

	Phenacolemur jepseni Simpson 1955
	= cf. Simpsonlemur jepseni Simpson 1955	Alroy 2002
Mammalia - Primates - Microsyopidae

	Cynodontomys alfi McKenna 1960
	= Microsyops angustidens Matthew 1915	Gunnell 1985

	Niptomomys doreenae McKenna 1960	Bown and Gingerich 1972
Mammalia

	Peradectes protinnominatus n. sp. McKenna 1960
	(4 measurements)
see common names

Geography

Country:	United States	State/province:	Colorado	County:	Moffat
Coordinates:	40.6° North, 108.1° West (view map)
Paleocoordinates:	45.4° North, 91.9° 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:	54.9 - 50.5 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Wasatch
Local section:	Alhet	Local bed:	1
Local order:	bottom to top

Lithology and environment

Environment:

terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils,mesofossils

Collection methods and comments

Collection size:	651 specimens
Taxonomic list comments:392 m level in local section according to Hill et al. 2000 CM 953 may include other UCMP localities

Metadata

Also known as:	CM 953; UCMP V-5357A
Database number:	15887
Authorizer:	J. Alroy, J. Marcot	Enterer:	J. Alroy, J. Marcot
Modifier:	J. Alroy	Research group:	vertebrate
Created:	1993-09-27 00:00:00	Last modified:	2009-07-15 19:53:42
Access level:	the public	Released:	1993-09-27 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

2528.

M. C. McKenna. 1960. Fossil Mammalia from the early Wasatchian Four Mile fauna, Eocene of northwest Colorado. University of California Publications in Geological Sciences 37(1):1-130 [J. Alroy/J. Alroy/M. Uhen]

Secondary references:

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1116		T. M. Bown and P. D. Gingerich. 1972. Dentition of the Early Eocene primates, Niptomomys and Absarokius. Postilla 158:1-10 [J. Alroy/J. Alroy/J. Ju]
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]
1125		T. M. Bown and D. Schankler. 1982. A review of the Proteutheria and Insectivora of the Willwood Formation (Lower Eocene), Bighorn Basin, Wyoming. United States Geological Survey Bulletin 1523:1-79 [J. Alroy/J. Alroy/J. Ju]
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]
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]
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]
1675		P. D. Gingerich and E. L. Simons. 1977. Systematics, phylogeny, and evolution of early Eocene Adapidae (Mammalia, Primates) in North America. Contributions from the Museum of Paleontology, University of Michigan 24(22):245-279 [J. Alroy/J. Alroy/M. Uhen]
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]
1730		G. F. Gunnell. 1989. Evolutionary History of Microsyopoidea (Mammalia, ?Primates) and the Relationship Between Plesiadapiformes and Primates. University of Michigan Papers on Paleontology 27:1-157 [J. Alroy/J. Alroy/P. Mannion]
1745		G. F. Gunnell and P. D. Gingerich. 1991. Systematics and Evolution of Late Paleocene and Early Eocene Oxyaenidae (Mammalia, Creodonta) in the Clarks Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 28(7):141-180 [J. Alroy/J. Alroy/J. Marcot]
2158		D. W. Krause. 1982. Multituberculates from the Wasatchian Land-Mammal Age, Early Eocene, of Western North America. Journal of Paleontology 56(2):271-294 [J. Alroy/J. Alroy/J. Ju]
2183		L. Krishtalka and R. K. Stucky. 1985. Revision of the Eocene Wind River Faunas, Early Eocene of Central Wyoming. Part 7. Revision of Diacodexis (Mammalian, Artiodactyla). Annals of Carnegie Museum 54(14):413-486 [J. Alroy/J. Alroy/J. Marcot]
2785		P. D. Polly. 1993. Hyaenodontidae (Creodonta, Mammalia) from the Early Eocene Four Mile Fauna and their biostratigraphic implications. PaleoBios 14(4):1-10 [J. Alroy/J. Alroy/J. Ju]
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]
6223		A. D. Redline. 1997. Revision of the Wind River faunas, early Eocene of central Wyoming. Part 13. Systematics and phylogenetic pattern of early Eocene Hyopsodus (Mammalia: Condylarthra). Annals of Carnegie Museum 66(1):1-81 [J. Alroy/J. Alroy/J. Alroy]
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]
3335		R. K. Stucky and L. Krishtalka. 1990. Revision of the Wind River Faunas, Early Eocene of Central Wyoming. Part 10. Bunophorus (Mammalia, Artiodactyla). Annals of Carnegie Museum 59(2):149-171 [J. Alroy/J. Alroy/J. Marcot]
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]