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
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
Amphibia | |
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Urodela indet.4, Amphiumidae indet.3, Piceoerpeton willwoodense7, cf. Scapherpeton sp.4, Necturus krausei n. sp.5, Cryptobranchus saskatchewanensis n. sp.6
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)
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)
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Reptilia | |
Champsosaurus gigas2 Erickson 1972 choristodere UALVP 33921 (skull and vertebrae); 'Near Roche Perceé [UAR2L]'
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Mammalia | |
Prochetodon foxi, Ptilodus kummae n. sp.
Prochetodon foxi Krause 1987 multituberculate
Ptilodus kummae n. sp. Krause 1977 multituberculate | |
Mimetodon silberlingi, Ectypodus cf. powelli, Neoplagiaulax hunteri, Neoplagiaulax cf. hazeni, Mesodma pygmaea
Mimetodon silberlingi Simpson 1935 multituberculate
Ectypodus cf. powelli Jepsen 1940 multituberculate
Neoplagiaulax hunteri Simpson 1936 multituberculate
Neoplagiaulax cf. hazeni Jepsen 1940 multituberculate
Mesodma pygmaea Sloan 1987 multituberculate | |
Microcosmodon conus Jepsen 1930 multituberculate | |
Litocherus lacunatus Gazin 1956 elephant shrew
"Diacocherus cf. meizon" = Adunator meizon Gingerich 1983 elephant shrew | |
Ignacius frugivorus Matthew and Granger 1921 primate | |
"Micromomys vossae n. sp." = Foxomomys vossae
"Micromomys vossae n. sp." = Foxomomys vossae Krause 1978 primate | |
Carpodaptes stonleyi n. sp.1
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Plesiadapis churchilli Gingerich 1975 primate | |
"Lipotyphla indet." = Eulipotyphla9
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Litolestes cf. ignotus Jepsen 1930 hedgehog | |
Aatotomus placochton n. gen. n. sp.8, Aatotomus cf. placochton8, Bessoecetor krausei n. sp.8, Bessoecetor pilodontus9, Palaeosinopa reclusum n. sp.8, Propalaeosinopa sp.
Propalaeosinopa sp. Simpson 1927 placental | |
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Viverravidae indet.9, Didymictis dellensis9, Didymictis cf. dellensis9, Protictis paralus9, Raphictis sp., Raphictis sp.9
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"Arctocyon mumak" = Arctocyon acrogenius9, Arctocyon corrugatus9, Thryptacodon australis, Chriacus cf. baldwini9
Thryptacodon australis Simpson 1935 condylarth | |
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Cyriacotherium cf. argyreum Rose and Krause 1982 pantodont described by Rose and Krause 1982: both UAR2 and UAR2a
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