PBDB Collection

Roche Percée (Paleocene of Canada)

Also known as UAR2; UAR-2; UAR2L

Where: Saskatchewan, Canada (49.1° N, 102.7° W: paleocoordinates 53.8° N, 80.1° W)

• 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: CC BY (attribution)

Taxonomic list

• this is a composite of several localities

Show authors, comments, and common names

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

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