Also known as Cochrane 11; Cochrane II
Where: Alberta, Canada (51.2° N, 114.4° W: paleocoordinates 57.7° N, 92.1° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Paskapoo Formation, Ti1 (61.7 - 56.8 Ma)
• reassigned from the Porcupine Hills Formation to the Paskapoo Formation by Fox (2011)
•fossils are from "within an interval ranging from a few centimeters to a meter or so in thickness" (Fox 2011)
• group of beds-level stratigraphic resolution
Environment/lithology: fluvial-lacustrine; pebbly, shelly/skeletal, green siltstone
Size classes: macrofossils, mesofossils
Collected by G. P. Youzwyshyn in 1988
Collection methods: bulk, chemical, sieve
• see Scott et al. 2002
•fossils were presumably collected over numerous field seasons
Primary reference: R. C. Fox. 1988. Late Cretaceous and Paleocene mammal localities of southern Alberta. Occasional Paper of the Tyrrell Museum of Palaeontology 6:1-38 [J. Alroy/J. Alroy/P. Mannion]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 14939: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by K. Christopher Beard, Patricia Holroyd and Philip Mannion
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
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Mammalia | |
Litomylus dissentaneus Simpson 1935 elephant shrew | |
Litocherus sp. Gingerich 1983 elephant shrew
Litocherus cf. lacunatus Gazin 1956 elephant shrew | |
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Desmatoclaenus sp. Gazin 1941 placental | |
Eudaemonema cf. cuspidata Simpson 1935 placental | |
cf. Thylacaelurus sp. Russell 1954 placental | |
Elpidophorus cf. elegans Simpson 1927 colugo | |
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Elphidotarsius russelli n. sp. Krause 1978 primate
Carpodaptes cf. hazelae Simpson 1936 primate | |
Plesiadapis cf. anceps Simpson 1936 primate
Plesiadapis praecursor Gingerich 1975 primate not clear if this is really present in light of Fox 1990b
Nannodectes intermedius Gazin 1971 primate
? Pronothodectes sp. Gidley 1923 primate regarded as N. intermedius by Gingerich 1982a, but described by Fox 1990b
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Picrodus canpacius n. sp.8
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cf. Mimotonidae indet. Li 1977 placental | |
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"Prodiacodon cf. puercensis" = Diacodon puercensis
"Prodiacodon cf. puercensis" = Diacodon puercensis Matthew 1918 placental | |
Nyctitheriidae indet., Limaconyssus sp., cf. Nyctitherium sp., Leptacodon cf. packi, "Leptacodon" munusculum, Leptacodon cf. tener
Nyctitheriidae indet. Simpson 1928 placental
Limaconyssus sp. Gingerich 1987 placental
Leptacodon cf. packi Jepsen 1930 placental
"Leptacodon" munusculum Simpson 1935 placental
Leptacodon cf. tener Matthew and Granger 1921 placental | |
Mesonychidae indet. Cope 1875 condylarth | |
"? Oxyclaeninae indet." = Oxyclaenidae
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Simpsonictis cf. tenuis Simpson 1935 placental
Simpsonictis pegus Gingerich and Winkler 1985 placental | |
Pristinictis connata n. sp.3
Pristinictis connata n. sp.3 Fox and Youzwyshyn 1994 carnivoran presumably includes new viverravid of Fox
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Creodonta indet. Cope 1875 creodont | |
"Arctocyon cf. montanensis" = Arctocyon corrugatus1, Colpoclaenus cf. keeferi, ? Mimotricentes sp., Thryptacodon orthogonius9, Chriacus pelvidens, Chriacus cf. baldwini, ? Oxyprimus sp.
Colpoclaenus cf. keeferi Patterson and McGrew 1962 condylarth
? Mimotricentes sp. Simpson 1937 condylarth
Chriacus pelvidens Cope 1881 condylarth
Chriacus cf. baldwini Cope 1882 condylarth
? Oxyprimus sp. Van Valen 1978 condylarth | |
Ectocion collinus Russell 1929 condylarth | |
? Periptychidae indet. Cope 1882 condylarth | |
Paleotomus senior Simpson 1937 eutherian | |
Jepsenella cf. praepropera Simpson 1940 eutherian | |
Pantodonta indet. pantodont | |
Bisonalveus browni Gazin 1956 eutherian | |
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Palaeoryctidae indet., Didelphodontinae indet., Palaeoryctes cf. punctatus, Pararyctes pattersoni, Pararyctes rutherfordi n. sp.9
Didelphodontinae indet. Simpson 1927 eutherian
Palaeoryctes cf. punctatus Van Valen 1966 eutherian
Pararyctes pattersoni Van Valen 1966 eutherian | |
Myrmecoboides montanensis Gidley 1915 eutherian
Prodiacodon furor Novacek 1977 eutherian
Prodiacodon concordiarcensis Simpson 1935 eutherian | |
Peradectes sp. Matthew and Granger 1921 marsupial | |
Eucosmodontinae indet. Jepsen 1940 multituberculate | |
Pentacosmodon sp. Jepsen 1940 multituberculate | |
Anconodon sp. Jepsen 1940 multituberculate
Anconodon cochranensis Russell 1929 multituberculate
Anconodon gidleyi Simpson 1935 multituberculate | |
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Neoplagiaulacidae indet., Ectypodus sp., Ectypodus cf. szalayi, Parectypodus sp., Parectypodus cf. sylviae, Parectypodus sinclairi, Mimetodon silberlingi, Mesodma pygmaea, Neoplagiaulax nelsoni, Neoplagiaulax cf. hunteri, Neoplagiaulax donaldorum10
Neoplagiaulacidae indet. Ameghino 1890 multituberculate
Ectypodus sp. Matthew and Granger 1921 multituberculate
Ectypodus cf. szalayi Sloan 1981 multituberculate
Parectypodus cf. sylviae Rigby 1980 multituberculate
Parectypodus sinclairi Simpson 1935 multituberculate
Mimetodon silberlingi Simpson 1935 multituberculate
Mesodma pygmaea Sloan 1987 multituberculate
Neoplagiaulax nelsoni Sloan 1987 multituberculate
Neoplagiaulax cf. hunteri Simpson 1936 multituberculate | |
Osteichthyes | |
Chronoperates paradoxus n. gen. n. sp.4
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