PBDB Collection

Cedar Point Quarry: Tiffanian, Wyoming

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia - Dermoptera

	Elpidophorus elegans Simpson 1927
Mammalia - Primates - Paromomyidae

	Ignacius frugivorus Matthew and Granger 1921
Mammalia - Primates - Picrodontidae

	Picrodus cf. silberlingi Douglass 1908
Mammalia - Primates - Plesiadapidae

	Plesiadapis rex (Gidley 1923)
	(6 measurements)
Mammalia - Primates - Carpolestidae

	Carpodaptes hazelae Simpson 1936
Mammalia - Creodonta - Oxyaenidae

	Tytthaena parrisi n. sp. Gingerich 1980
	(1 measurement)
Mammalia - Viverravidae

	Protictis paralus Holtzman 1978	Gingerich and Winkler 1985
	(1 measurement)

	Protictis cf. haydenianus (Cope 1882)
	(6 measurements)
	= Protictis agastor n. sp. Gingerich and Winkler 1985	Gingerich and Winkler 1985

	Protictis sp. (Matthew)
	(1 measurement)
	= Raphictis gausion n. sp. Gingerich and Winkler 1985	Gingerich and Winkler 1985
Mammalia - Acreodi - Mesonychidae

	Dissacus sp. Cope 1881
	= Dissacus cf. praenuntius Matthew and Granger 1915	Van Valen 1978

	? Pachyaena sp. Cope 1874	Secord 2008
Mammalia - Phenacodontidae

	Ectocion wyomingensis (Gazin 1956)
	(6 measurements)
	= Ectocion cedrus n. sp. Thewissen 1990	Thewissen 1990

	Phenacodus grangeri Simpson 1935
	(1 measurement)
Mammalia - Procreodi - Arctocyonidae

	Claenodon acrogenius Gazin 1956
	= Mentoclaenodon cf. acrogenius Gazin 1956	Alroy 2002
	recombined as Arctocyon acrogenius

	Mimotricentes sp. Simpson 1937
	= Mimotricentes fremontensis Gazin 1956	Van Valen 1978
	confirmed by Gingerich 1979b

	Chriacus sp. Cope 1883
	= Chriacus oconostotae Van Valen 1978	Van Valen 1978

	Thryptacodon australis Simpson 1935

	Colpoclaenus keeferi Patterson and McGrew 1962	Van Valen 1978

	Aphanocyon amaurus n. sp. Secord 2008	Secord 2008
Mammalia - Pantolestidae

	Leptonysson orthius n. sp. Secord 2008	Secord 2008

	Propalaeosinopa cf. diluculi (Simpson 1935)
	= Bessoecetor cf. septentrionalis Russell 1929	Scott et al. 2002
Mammalia - Erinaceidae

	Cedrocherus ryani n. sp. Gingerich 1983	Gingerich 1983
	(1 measurement)
Mammalia - Nyctitheriidae

	Leptacodon acherontus n. sp. Secord 2008	Secord 2008

	cf. Leptacodon tener Matthew and Granger 1921
	described by Krishtalka 1976b (2 measurements)

	cf. Leptacodon munusculum Simpson 1935
	described by Krishtalka 1976b (1 measurement)
Mammalia - Macroscelidea

	Litolestes lacunatus Gazin 1956
	(1 measurement)
	= Litocherus zygeus n. sp. Gingerich 1983	Gingerich 1983
	in part

	Mckennatherium cf. ladae (Simpson 1935)
	(1 measurement)
	= Diacocherus meizon n. sp. Gingerich 1983	Gingerich 1983
	recombined as Adunator meizon
Mammalia - Macroscelidea - Apheliscidae

	cf. Haplaletes serior Gazin 1956	Van Valen 1978
	recombined as Utemylus serior

	Aletodon quadravus Gingerich 1983	Gingerich 1983
	"Litomylus? cf. ishami" of Gingerich 1977 (1 measurement)
Mammalia - Apatemyidae

	Labidolemur soricoides Matthew and Granger 1921
	described by West 1973a
Mammalia - Cimolestidae

	Niphredil radagasti n. sp. Van Valen 1978
	= Paleotomus radagasti Van Valen 1978	Van Valen 1978
	presumably includes new pantolestid of Rose; see Gingerich 1980a
Mammalia - Pentacodontidae

	Protoselene sp. Matthew 1897
	(1 measurement)
	= Bisonalveus holtzmani n. sp. Gingerich 1983	Gingerich 1983
Mammalia

	Titanoides gidleyi Jepsen 1930
	described by Simons 1960
Mammalia - Pantolambdidae

	Caenolambda jepseni Simons 1960
Mammalia - Leptictidae

	Myrmecoboides sp. Gidley 1915
	= Myrmecoboides arenarius n. sp. Secord 2008	Secord 2008
Mammalia - Proteutheria - Palaeoryctidae

	cf. Palaeoryctes sp. Matthew 1913
Mammalia

	Peradectes elegans Matthew and Granger 1921
Mammalia - Multituberculata - Neoplagiaulacidae

	Neoplagiaulax hunteri (Simpson 1936)

	Neoplagiaulax jepi n. sp. Sloan 1987	Sloan 1987
	= new sp. of Rose

	cf. Ectypodus powelli Jepsen 1940
Mammalia - Multituberculata - Ptilodontidae

	Ptilodus sp. Cope 1881	Carlson and Krause 1985
	said to be new; listed as "P. sp. C" by Krause 1987a

	Ptilodus kummae Krause 1977	Gunnell 1994
Reptilia - Testudines

	Hutchemys rememdium Joyce et al. 2009	Joyce et al. 2009
	YPM PU 14985 (posterior half of a carapace)

	Plastomenoides lamberti Hutchison 2009	Hutchison 2009
	synonym of Hutchemys rememdium
	UMMP V74588
Reptilia - Baenidae

	Palatobaena bairdi n. gen., n. sp. Gaffney 1972	Archibald and Hutchison 1979
	PU 16839 - holotype (the right half of a skull, partially distorted)

	Plesiobaena putorius n. sp. Gaffney 1972	Gaffney 1972	4 specimens
	YPM PU 14984 (holotype skull); YPM PU 14986, posterior portion of parietals; YPM PU 20600, skull; PU 20600, skull
	= Cedrobaena n. gen. putorius Gaffney 1972	Lyson and Joyce 2009
Reptilia - Anguidae

	Anguidae indet. Gray 1825	ElShafie 2024

	Odaxosaurus sp. Gilmore 1928	Bartels 1980

	cf. Odaxosaurus piger (Gilmore 1928)	ElShafie 2024
Reptilia

	Champsosaurus sp. Cope 1876	Bartels 1980
Amphibia - Temnospondyli - Urodela

	Piceoerpeton willwoodense (Meszoely 1967)	Krause 1980
	see also Naylor and Krause 1981; atlantes YPM(PU) 21241A-D and trunk ver tebrae YPM(PU) 20662, 20666, 20788, 20855, and UM 72613

	Lisserpeton bairdi Estes 1965	Krause 1980
see common names

Geography

Country:	United States	State/province:	Wyoming	County:	Big Horn
Coordinates:	44.7° North, 108.4° West (view map)
Paleocoordinates:	50.5° North, 87.9° West
Basis of coordinate:	estimated from map
Geographic resolution:	small collection

Time

Period:	Paleogene	Epoch:	Paleocene
10 m.y. bin:	Cenozoic 1
*Period:	Tertiary
Key time interval:	Tiffanian
Age range of interval:	60.90000 - 56.20000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Formation:	Fort Union
Local section:	CedPt	Local bed:	1
Local order:	bottom to top
Regional section:	Southeast	Regional bed:	10
Regional order:	bottom to top
Stratigraphic resolution:	group of beds

Lithology and environment

Primary lithology:	lithified "siliciclastic"
Includes fossils?	Y
Environment:	fluvial-lacustrine indet.	Tectonic setting:	intermontane basin

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils,mesofossils
Preservation of anatomical detail:	good
Associated major elements:	some
Disassociated major elements:	many
Temporal resolution:	time-averaged
Spatial resolution:	parautochthonous

Collection methods and comments

Collection methods:	surface (float),surface (in situ),survey of museum collection
Collection size:	1988 specimens
Reason for describing collection:	paleoecologic analysis
Museum repositories:	UMMP
Taxonomic list comments:same level as Jepsen Quarry and "clearly" underlying Croc Tooth and Divide Quarries: Gingerich 1976said by Gingerich and Winkler 1985 to be at "approximately 325 m" but I believe this is based on biochronological inference aloneI have used Van Valen's 1978 list of condylarths because Rose gives no reason for ignoring itsec 23-26 T55N R96W"Claenodon ferox" is omitted by Van Valen 1978 Zone Ti-3

Metadata

Database number:	15017
Authorizer:	J. Alroy, P. Mannion, K. Beard, P. Holroyd, R. Benson	Enterer:	J. Alroy, R. Benson, P. Holroyd, K. Beard, P. Mannion
Modifier:	P. Mannion	Research group:	vertebrate
Created:	1993-02-18 00:00:00	Last modified:	2013-01-18 07:11:20
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]
38165		J. D. Archibald and J. H. Hutchison. 1979. Revision of the genus Palatobaena (Testudines, Baenidae), with the description of a new species. Postilla 177:1-19 [P. Mannion/P. Mannion/P. Holroyd]
14359		W. S. Bartels. 1980. Early Cenozoic reptiles and birds from the Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 24:73-79 [J. Alroy/J. Alroy/J. Alroy]
1173		S. J. Carlson and D. W. Krause. 1985. Contributions from the Museum of Paleontology, University of Michigan 27(1) [J. Alroy/J. Alroy]
11717		W. C. Clyde. 1997. Stratigraphy and mammalian paleontology of the McCullough Peaks, northern Bighorn Basin, Wyoming: Implications for biochronology, basin development, and community reorganization across the Paleocene-Eocene boundary. PhD Thesis, University of Michigan [W. Clyde/W. Clyde/J. Alroy]
87093		S. J. ElShafie. 2024. Body size estimation from isolated fossil bones reveals deep time evolutionary trends in North American lizards. PLoS ONE 19(1:e0296318):1-25 [P. Holroyd/P. Holroyd/P. Holroyd]
704		E. S. Gaffney. 1972. The systematics of the North American family Baenidae (Reptilia, Cryptodira). Bulletin of the American Museum of Natural History 147(5):245-312 [J. Alroy/M. Sommers/R. Benson]
44340		J. D. Gardner. 2012. Revision of Piceoerpeton MESZOELY (Caudata: Scapherpetontidae) and description of a new species from the late Maastrichtian and ? early Paleocene of western North America. Bulletin de la Société Géologique de France 183(6):611-620 [P. Mannion/P. Mannion]
1652		P. D. Gingerich. 1983. New Adapisoricidae, Pentacodontidae, and Hyopsodontidae (Mammalia, Insectivora and Condylarthra) from the late Paleocene ofWyoming and Colorado. Contributions from the Museum of Paleontology, University of Michigan 26(11):227-255 [J. Alroy/J. Alroy/P. Mannion]
1676		P. D. Gingerich and D. A. Winkler. 1985. Systematics of Paleocene Viverravidae (Mammalia, Carnivora) in the Bighorn Basin and Clark's Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan 27(4):87-128 [J. Alroy/J. Alroy/J. Marcot]
1731		G. F. Gunnell. 1994. Paleocene mammals and faunal analysis of the Chappo Type Locality (Tiffanian), Green River Basin, Wyoming. Journal of Vertebrate Paleontology 14(1):81-104 [J. Alroy/J. Alroy/J. Alroy]
58298		J. H. Hutchison. 2009. New soft-shelled turtles (Plastomeninae, Trionychidae, Testudines) from the Cretaceous and Paleocene of North America. PaleoBios 29(2):36-47 [P. Holroyd/P. Holroyd]
44082		W. G. Joyce, A. Revan, T. R. Lyson and I. G. Danilov. 2009. Two new plastomenine softshell turtles from the Paleocene of Montana and Wyoming. Bulletin of the Peabody Museum of Natural History 50(2):307-325 [P. Mannion/P. Mannion]
14358		D. W. Krause. 1980. Early Tertiary amphibians from the Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 243:69-71 [J. Alroy/J. Alroy/J. Alroy]
39185		T. R. Lyson and W. G. Joyce. 2009. A revision of Plesiobaena (Testudines: Baenidae) and an assessment of baenid ecology across the K/T boundary. Journal of Paleontology 83(6):833-853 [R. Benson/R. Benson]
63104		R. Secord. 2008. The Tiffanian Land-Mammal Age (middle and late Paleocene) in the northern Bighorn Basin, Wyoming. University of Michigan Papers on Paleontology 35:1-192 [K. Beard/K. Beard]
3196		R. E. Sloan. 1987. Paleocene and latest Cretaceous mammal ages, biozones, magnetozones, rates of sedimentation, and evolution. Geological Society of America Special Paper 209:165-200 [J. Alroy/J. Alroy/M. Uhen]
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]
3485		L. M. Van Valen. 1978. The beginning of the Age of Mammals. Evolutionary Theory 4:45-80 [J. Alroy/J. Alroy/M. Carrano]