PBDB Collection

Rock Bench Quarry: Torrejonian, Wyoming

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Amphibia - Temnospondyli - Batrachosauroididae

	Opisthotriton kayi Auffenberg 1961	Krause 1980
Amphibia - Temnospondyli - Urodela

	Lisserpeton bairdi Estes 1965	Krause 1980

	Scapherpeton tectum Cope 1876	Krause 1980

	Habrosaurus dilatus Gilmore 1928	Krause 1980
Reptilia - Baenidae

	Cedrobaena putorius (Gaffney 1972)	Lyson and Joyce 2009
	YPM PU 16837, the right 1/3 of a skull; YPM PU 18011, posterior portion of parietals
Reptilia - Anguidae

	Peltosaurus jepseni Gilmore 1942
	synonym of Proxestops silberlingii
Reptilia

	Champsosaurus sp. Cope 1876	Bartels 1980
Mammalia - Multituberculata - Neoplagiaulacidae

	Neoplagiaulacidae indet. Ameghino 1890	Rose 1981
	two new forms, "1" and "2"

	Ectypodus aphronorus Sloan 1987	Sloan 1987

	Mesodma pygmaea Sloan 1987	Krause 1977
	not listed in Sloan 1987

	cf. Mimetodon silberlingi (Simpson 1935)	Rose 1981
Mammalia - Multituberculata - Ptilodontidae

	Baiotomeus douglassi (Simpson 1935)	Krause 1987

	Ptilodus wyomingensis n. sp. Jepsen 1940	Rose 1981
	see Jepsen 1940
Mammalia - Multituberculata - Cimolodontidae

	Anconodon cochranensis (Russell 1929)	Rose 1981
	sen. syn. of A. russelli: Sloan 1987

	Anconodon gidleyi (Simpson 1935)	Rose 1981
Mammalia - Multituberculata - Eucosmodontidae

	Stygimys sp. Sloan and Van Valen 1965	Rose 1981
Mammalia - Multituberculata - Taeniolabididae

	Catopsalis sp. Cope 1882	Rose 1981
Mammalia - Proteutheria

	Proteutheria indet. Romer 1966	Rose 1981
	new forms "A," "B," "D" and "E"
Mammalia - Proteutheria - Palaeoryctidae

	Palaeoryctidae indet. Winge 1917	Rose 1981
	two new forms, "F" and "G"
Mammalia - Condylarthra - Hyopsodontidae

	Litaletes cf. disjunctus Simpson 1935	Rose 1981
	= Litaletes ondolinde Van Valen 1978	Van Valen 1978

	Promioclaenus aquilonius (Simpson 1935)	Rose 1981
	= Promioclaenus acolytus Cope 1882	Alroy 2002
Mammalia - Mixodectidae

	Eudaemonema cuspidata Simpson 1935	Rose 1981
Mammalia - Primates - Palaechthonidae

	Premnoides douglassi Gunnell 1989	Gunnell 1989
	"Plesiadapiform" (1 measurement)

	Palenochtha minor (Gidley 1923)	Rose 1981
	confirmed by Gunnell 1989

	Plesiolestes problematicus n. sp. Jepsen 1930	Rose 1981
	(6 measurements)
Mammalia - Primates - Paromomyidae

	Ignacius cf. fremontensis (Gazin 1971)	Rose 1981

	Paromomys depressidens Gidley 1923	Rose 1981
	confirmed by Gunnell 1989
Mammalia - Primates - Picrodontidae

	Picrodus silberlingi Douglass 1908	Rose 1981
Mammalia - Primates - Carpolestidae

	Elphidotarsius cf. florencae Gidley 1923	Rose 1981
Mammalia - Primates - Plesiadapidae

	Pronothodectes jepi n. sp. Gingerich 1975	Rose 1981
	(6 measurements)
Mammalia - Procreodi - Arctocyonidae

	Mimotricentes sp. Simpson 1937	Rose 1981
	= Mimotricentes subtrigonus Cope 1881	Van Valen 1978
	recombined as Tricentes subtrigonus

	Chriacus katrinae Van Valen 1978	Van Valen 1978

	Microclaenodon assurgens (Cope 1884)	Van Valen 1978

	Chriacus orthogonius Russell 1929	Van Valen 1978
	recombined as Thryptacodon orthogonius

	Arctocyon ferox (Cope 1883)	Rigby 1980

	Arctocyonides montanensis (Gidley 1919)	Rose 1981
	= Arctocyon montanensis Gidley 1919	Van Valen 1978
	synonym of Arctocyon corrugatus
	presumably includes "Claenodon" and "Colpoclaenus ? silberlingi" of Van Valen 1978
Mammalia - Phenacodontidae

	Tetraclaenodon puercensis (Cope 1881)	Rose 1981
	(6 measurements)
Mammalia - Viverravidae

	Protictis sp. (Matthew)	Rose 1981
	(1 measurement)
	= Simpsonictis pegus n. sp. Gingerich and Winkler 1985	Gingerich and Winkler 1985
	said to be new

	Simpsonictis tenuis (Simpson 1935)	Gingerich and Winkler 1985
	(1 measurement)

	Bryanictis microlestes (Simpson 1935)	Gingerich and Winkler 1985
	(1 measurement)

	Protictis haydenianus (Cope 1882)	Rose 1981
	(1 measurement)
Mammalia - Acreodi - Triisodontidae

	Goniacodon levisanus n. sp. (Cope 1883)	Rose 1981
Mammalia - Acreodi - Mesonychidae

	Dissacus sp. Cope 1881	Rose 1981
	= Dissacus navajovius Cope 1881	Van Valen 1978
Mammalia - Acreodi - Oxyclaenidae

	Prothryptacodon furens Simpson 1935	Van Valen 1978

	Coriphagus cf. encinensis (Matthew and Granger 1921)	Rose 1981
Mammalia - Periptychidae

	Anisonchus sectorius (Cope 1881)	Rose 1981
Mammalia - Nyctitheriidae

	cf. Leptacodon munusculum Simpson 1935	Rose 1981
Mammalia - Macroscelidea - Apheliscidae

	Litomylus cf. dissentaneus Simpson 1935	Rose 1981

	Haplaletes disceptatrix Simpson 1935	Rose 1981
Mammalia - Macroscelidea

	Mckennatherium ladae (Simpson 1935)	Rose 1981
	(1 measurement)
	= Adunator cf. ladae Simpson 1935	Alroy 2002

	Mckennatherium sp. Van Valen 1965	Rose 1981
	= Erinaceomorpha indet. Gregory 1910	Alroy 2002
	said to be new; could be Adunator or something else entirely
	= Adunator amplus n. sp. Secord 2008	Secord 2008
Mammalia - Insectivora

	Diacodon sp. Cope 1875	Rose 1981
	= Insectivora indet. Bowdich 1821	Alroy 2002
	forms "A" and "B"
Mammalia

	Huerfanodon polecatensis n. sp. Schoch and Lucas 1981	Schoch and Lucas 1981
	presumably includes "Conoryctes sp." of Rose (1 measurement)
Mammalia - Apatemyidae

	Unuchinia diaphanes n. sp. Gunnell 1988	Gunnell 1988
	(3 measurements)

	Jepsenella praepropera Simpson 1940	Rose 1981
	described by West 1973a (1 measurement)
Mammalia - Pentacodontidae

	Aphronorus sp. Simpson 1935	Rose 1981
	said to be new
Mammalia - Pantolambdidae

	cf. Pantolambda cavirictum Cope 1883	Rose 1981
Mammalia - Cimolestidae

	Gelastops parcus Simpson 1935	Rose 1981
Mammalia - Leptictidae

	Leptictidae indet. Gill 1872	Rose 1981
	new leptictid

	Myrmecoboides sp. Gidley 1915	Rose 1981

	? Palaeictops sp. Matthew 1899	Rose 1981
see common names

Geography

Country:	United States	State/province:	Wyoming	County:	Park
Coordinates:	44.3° North, 109.0° West (view map)
Paleocoordinates:	50.8° North, 86.5° West
Basis of coordinate:	based on political unit
Geographic resolution:	small collection

Time

Period:	Paleogene	Epoch:	Paleocene
10 m.y. bin:	Cenozoic 1
*Period:	Tertiary
Key time interval:	Torrejonian
Age range of interval:	63.80000 - 60.90000 m.y. ago
* legacy (obsolete) database fields

Stratigraphy

Local section:	Clark	Local bed:	65 m
Local order:	bottom to top
Stratigraphic resolution:	bed
Stratigraphy comments: in a stratigraphically isolated reversed polarity zone interpreted as chron 27r: Butler et al. 1987

Lithology and environment

Primary lithology:	not reported
Environment:	terrestrial indet.

Taphonomy

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

Collection methods and comments

Collection methods:	surface (in situ),field collection
Collection size:	1687 specimens
Reason for describing collection:	general faunal/floral analysis
Taxonomic list comments:>I have used Van Valen's 1978 list of condylarths because Rose gives no reason for ignoring it meter level follows Butler et al. 1981 above two records presumably include "Tricentes cf. punitor" and "cf. Chriacus sp."

Metadata

Also known as:	Locality No. 6
Database number:	14912
Authorizer:	J. Alroy, K. Beard, R. Benson	Enterer:	J. Alroy, R. Benson, K. Beard
Modifier:	M. Carrano	Research group:	vertebrate
Created:	1993-02-18 00:00:00	Last modified:	2020-01-24 09:36:01
Access level:	the public	Released:	1993-02-18 00:00:00
Creative Commons license:	CC BY

Reference information

Primary reference:

28626.

C. W. Gilmore. 1942. Paleocene faunas of the Polecat Bench Formation, Park County, Wyoming Part II. Lizards. Proceedings of the American Philosophical Society 85(2):159-167 [J. Alroy/J. Alroy]

Secondary references:

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
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]
6200		R. F. Butler, D. W. Krause, and P. D. Gingerich. 1987. Magnetic polarity stratigraphy and biostratigraphy of middle-late Paleocene continental deposits of south-central Montana. Journal of Geology 95(5):647-657 [J. Alroy/J. Alroy/J. Alroy]
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]
1729		G. F. Gunnell. 1988. New species of Unuchinia (Mammalia: Insectivora) from the middle Paleocene of North America. Journal of Paleontology 62(1):139-141 [J. Alroy/J. Alroy/J. Alroy]
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]
2155		D. W. Krause. 1977. Paleocene Multituberculates (Mammalia) of the Roche Percée Local Fauna, Ravenscrag Formation, Saskatchewan, Canada. Palaeontographica Abteilung A 159:1-36 [J. Alroy/J. Alroy/M. Uhen]
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]
2160		D. W. Krause. 1987. Baiotomeus, a New Ptilodontid Multituberculate (Mammalia) from the Middle Paleocene of Western North America . Journal of Paleontology 61(3):595-603 [J. Alroy/J. Alroy/J. Ju]
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]
2905		J. K. Rigby, Jr. 1980. Swain Quarry of the Fort Union Formation, Middle Paleocene (Torrejonian), Carbon County, Wyoming: geologic setting and mammalian fauna. Evolutionary Monographs 3:1-178 [J. Alroy/J. Alroy/J. Marcot]
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]
3057		R. M. Schoch and S. G. Lucas. 1981. New Conoryctines (Mammalia: Taeniodonta) from the Middle Paleocene (Torrejonian) of Western North America. Journal of Mammalogy 62(4) [J. Alroy/J. Alroy/J. Ju]
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]
3485		L. M. Van Valen. 1978. The beginning of the Age of Mammals. Evolutionary Theory 4:45-80 [J. Alroy/J. Alroy/M. Carrano]
3591		R. M. West. 1970. Tetraclaenodon puercensis (Mammalia: Phenacodontidae), Goler Formation, Paleocene of California, and distribution of the genus. Journal of Paleontology 44(5):851-857 [J. Alroy/J. Alroy/M. Carrano]