PBDB Collection

Roche Percée (Paleocene of Canada)

Also known as UAR2; UAR-2; UAR2L

Where: Saskatchewan, Canada (49.1° N, 102.7° W)

• Paleocoordinates: 56.1° N, 66.5° W (Wright 2013)

• coordinate stated in text

• small collection-level geographic resolution

When: Ravenscrag Formation, Ti4 (61.7 - 56.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: alluvial fan; fine-grained, gray sandstone and siltstone

• formation's environment was an "alluvial plain" (Scott 2006)

• formation consists "of fine-grained buff to grey sandstone, siltstones, and shale, with extensive lignite beds" (Scott 2006)

Size class: mesofossils

Collected by D. W. Krause

Collection methods: bulk, surface (float), sieve

• collected "in overburden that had been stripped during mining of therma coal" (Scott 2006)

Primary reference: R. C. Fox. 1990. The succession of Paleocene mammals in western Canada. Geological Society of America Special Paper 243:51-70 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 14978: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Roger Benson, Philip Mannion and Patricia Holroyd

Creative Commons license: CC0 (CC0)

Taxonomic list

• this is a composite of several localities

Show authors, comments, and common names

Amphibia
Proteida - Batrachosauroididae	Opisthotriton kayi⁴ Opisthotriton kayi⁴ Auffenberg 1961 salamander
Caudata - Urodela	Urodela indet.⁴, Piceoerpeton willwoodense⁷, cf. Scapherpeton sp.⁴, Necturus krausei n. sp.⁵, Cryptobranchus saskatchewanensis n. sp.⁶, Amphiumidae indet.³ Urodela indet.⁴ salamander Piceoerpeton willwoodense⁷ Meszoely 1967 salamander "Roche Perceé sites"; atlantes UALVP 11766-11772 and trunk vertebrae UALVP 11757-11765 (originally reported as “UA 14809-14815” and “UA 14800-14808”, respectively) cf. Scapherpeton sp.⁴ Cope 1876 salamander Necturus krausei n. sp.⁵ Naylor 1978 mudpuppy UAR 2g Cryptobranchus saskatchewanensis n. sp.⁶ Naylor 1981 hellbender Amphiumidae indet.³ Gray 1825 salamander UALVP 14316 (incomplete left dentary). Originally reported by Naylor (1978), who believed the specimen came from the Bug Creek Anthills and referred it to Proamphiuma cretacea, but subsequent examination of the original accession record indicates it came from a Roche Percée locality (Gardner 2003)
Salientia -	Anura indet.⁴ Anura indet.⁴ Fischer von Waldheim 1813 frog
Mammalia
Tribosphenida - Peradectidae	Peradectes cf. protinnaminatus⁹ Peradectes cf. protinnaminatus⁹ marsupial
Soricomorpha - Nyctitheriidae	Nyctitherium sp.⁹, Leptacodon sp.⁹ Nyctitherium sp.⁹ Marsh 1872 placental Leptacodon sp.⁹ Matthew and Granger 1921 placental
Placentalia -	"Lipotyphla indet." = Eulipotyphla⁹ "Lipotyphla indet." = Eulipotyphla⁹ placental "gen. et sp. indet"
Tribosphenida - Erinaceidae	Litolestes cf. ignotus, Oncocherus krishtalkai¹⁰ Litolestes cf. ignotus Jepsen 1930 hedgehog Oncocherus krishtalkai¹⁰ Scott 2006 hedgehog
Tribosphenida - Pantolestoidae	Bessoecetor pilodontus⁹, Bessoecetor krausei n. sp.⁸, Palaeosinopa reclusum n. sp.⁸, Aatotomus placochton n. gen. n. sp.⁸, Aatotomus cf. placochton⁸, Propalaeosinopa sp. Bessoecetor pilodontus⁹ Secord 2008 placental Bessoecetor krausei n. sp.⁸ Rankin 2014 placental Palaeosinopa reclusum n. sp.⁸ Rankin 2014 placental Aatotomus placochton n. gen. n. sp.⁸ Rankin 2014 placental Aatotomus cf. placochton⁸ Rankin 2014 placental Propalaeosinopa sp. Simpson 1927 placental
Tribosphenida - Phenacodontidae	Ectocion cf. cedrus⁹, Phenacodus magnus⁹ Ectocion cf. cedrus⁹ Thewissen 1990 condylarth Phenacodus magnus⁹ Thewissen 1990 condylarth
Procreodi - Arctocyonidae	"Arctocyon mumak" = Arctocyon acrogenius⁹, Arctocyon corrugatus⁹, Chriacus cf. baldwini⁹, Thryptacodon australis "Arctocyon mumak" = Arctocyon acrogenius⁹ Gazin 1956 condylarth Arctocyon corrugatus⁹ Cope 1883 condylarth Chriacus cf. baldwini⁹ Cope 1882 condylarth Thryptacodon australis Simpson 1935 condylarth
Ferae - Viverravidae	Viverravidae indet.⁹, Didymictis dellensis⁹, Didymictis cf. dellensis⁹, Raphictis sp., Raphictis sp.⁹, Protictis paralus⁹ Viverravidae indet.⁹ Wortman and Matthew 1899 placental "gen. et sp. indet" Didymictis dellensis⁹ Dorr 1952 placental Didymictis cf. dellensis⁹ Dorr 1952 placental Raphictis sp. Gingerich and Winkler 1985 placental two forms, said to be new Raphictis sp.⁹ Gingerich and Winkler 1985 placental Protictis paralus⁹ Holtzman 1978 placental
Primates - Micromomyidae	"Micromomys vossae n. sp." = Foxomomys vossae "Micromomys vossae n. sp." = Foxomomys vossae Krause 1978 primate
Primates - Paromomyidae	Ignacius frugivorus Ignacius frugivorus Matthew and Granger 1921 primate
Primates - Plesiadapidae	Plesiadapis churchilli Plesiadapis churchilli Gingerich 1975 primate
Primates - Carpolestidae	Carpodaptes stonleyi n. sp.¹ Carpodaptes stonleyi n. sp.¹ Fox 2002 primate
Macroscelidea -	Litocherus lacunatus, Litocherus cf. zygeus⁹, "Diacocherus cf. meizon" = Adunator meizon Litocherus lacunatus Gazin 1956 elephant shrew Litocherus cf. zygeus⁹ Gingerich 1983 elephant shrew "Diacocherus cf. meizon" = Adunator meizon Gingerich 1983 elephant shrew
Proteutheria - Palaeoryctidae	Palaeoryctes sp.⁹, Pararyctes pattersoni⁹ Palaeoryctes sp.⁹ Matthew 1913 eutherian Pararyctes pattersoni⁹ Van Valen 1966 eutherian
Cimolesta - Titanoideidae	Titanoides cf. primaevus⁹ Titanoides cf. primaevus⁹ Gidley 1917 pantodont
Cimolesta - Cyriacotheriidae	Cyriacotherium cf. argyreum Cyriacotherium cf. argyreum Rose and Krause 1982 pantodont described by Rose and Krause 1982: both UAR2 and UAR2a
Cimolesta - Apatemyidae	Labidolemur soricoides⁹, Unuchinia dysmathes⁹ Labidolemur soricoides⁹ Matthew and Granger 1921 eutherian Unuchinia dysmathes⁹ Holtzman 1978 eutherian
Multituberculata - Microcosmodontidae	Microcosmodon conus Microcosmodon conus Jepsen 1930 multituberculate
Multituberculata - Ptilodontidae	Prochetodon foxi, Ptilodus kummae n. sp. Prochetodon foxi Krause 1987 multituberculate Ptilodus kummae n. sp. Krause 1977 multituberculate
Multituberculata - Neoplagiaulacidae	Neoplagiaulax cf. hazeni, Neoplagiaulax hunteri, Mimetodon silberlingi, Ectypodus cf. powelli, Mesodma pygmaea Neoplagiaulax cf. hazeni Jepsen 1940 multituberculate Neoplagiaulax hunteri Simpson 1936 multituberculate Mimetodon silberlingi Simpson 1935 multituberculate Ectypodus cf. powelli Jepsen 1940 multituberculate Mesodma pygmaea Sloan 1987 multituberculate
Reptilia
Choristodera -	Champsosaurus gigas² Champsosaurus gigas² Erickson 1972 choristodere UALVP 33921 (skull and vertebrae); 'Near Roche Perceé [UAR2L]'

¹Fox 2002; ²Gao and Fox 1998; ³Gardner 2003; ⁴Gardner and DeMar 2013; ⁵Naylor 1978; ⁶Naylor 1981; ⁷Naylor and Krause 1981; ⁸Rankin 2014; ⁹Rankin 2018; ¹⁰Scott 2006