Cochrane 2: Ti1, Canada
collected by G. P. Youzwyshyn 1988
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia
- Temnospondyli
- Albanerpetontidae
|
||||||||||
Albanerpeton informal sp. nov.
Estes and Hoffstetter 1976
|
Gardner and DeMar 2013 | |||||||||
Mammalia
- Multituberculata
- Microcosmodontidae
|
||||||||||
Acheronodon sp.
Archibald 1982
|
||||||||||
said to be new | ||||||||||
Pentacosmodon sp.
Jepsen 1940
|
||||||||||
Mammalia
- Multituberculata
- Cimolodontidae
|
||||||||||
Anconodon sp.
Jepsen 1940
|
||||||||||
Anconodon cochranensis
(Russell 1929)
|
||||||||||
Anconodon gidleyi
(Simpson 1935)
|
||||||||||
Mammalia
- Multituberculata
- Neoplagiaulacidae
|
||||||||||
Neoplagiaulacidae indet.
Ameghino 1890
|
||||||||||
Parectypodus sp.
Jepsen 1930
|
||||||||||
said to be new | ||||||||||
Parectypodus sinclairi
(Simpson 1935)
|
||||||||||
Parectypodus cf. sylviae
(Rigby 1980)
|
||||||||||
Ectypodus sp.
Matthew and Granger 1921
|
||||||||||
Ectypodus cf. szalayi
Sloan 1981
|
||||||||||
Neoplagiaulax donaldorum
Scott and Krause 2006
|
Scott and Krause 2006 | |||||||||
Neoplagiaulax nelsoni
Sloan 1987
|
||||||||||
nomen nudum belonging to Neoplagiaulax | ||||||||||
Neoplagiaulax cf. hunteri
(Simpson 1936)
|
||||||||||
Mesodma pygmaea
Sloan 1987
|
||||||||||
Mimetodon silberlingi
(Simpson 1935)
|
||||||||||
Mammalia
- Multituberculata
- Ptilodontidae
|
||||||||||
Baiotomeus sp.
Krause 1987
|
||||||||||
said to be new (1 measurement) | ||||||||||
= Baiotomeus russelli n. sp.
Scott et al. 2002
|
Scott et al. 2002 | |||||||||
Prochetodon speirsae n. sp.
Scott 2004
|
Scott 2004 | |||||||||
Ptilodus sp.
Cope 1881
|
||||||||||
two forms "T" and "C," both said to be new | ||||||||||
Ptilodus gnomus n. sp.
Scott et al. 2002
|
Scott et al. 2002 | |||||||||
(9 measurements) | ||||||||||
Mammalia
- Multituberculata
- Eucosmodontidae
|
||||||||||
Eucosmodontinae indet.
Jepsen 1940
|
||||||||||
Mammalia
- Leptictidae
|
||||||||||
Prodiacodon concordiarcensis
Simpson 1935
|
||||||||||
Prodiacodon furor
Novacek 1977
|
||||||||||
Prodiacodon cf. puercensis
(Matthew 1918)
|
||||||||||
Myrmecoboides montanensis
Gidley 1915
|
||||||||||
Mammalia
- Mixodectidae
|
||||||||||
Eudaemonema cf. cuspidata
Simpson 1935
|
||||||||||
Mammalia
- Mimotonidae
|
||||||||||
cf. Mimotonidae indet.
Li 1977
|
||||||||||
Mammalia
- Plagiomenidae
|
||||||||||
cf. Thylacaelurus sp.
Russell 1954
|
||||||||||
Mammalia
- Primates
- Paromomyidae
|
||||||||||
Paromomys depressidens
Gidley 1923
|
Gunnell 1989 | |||||||||
presumably includes "? Palaechthon sp." | ||||||||||
Ignacius fremontensis
(Gazin 1971)
|
||||||||||
= Ignacius glenbowensis
Scott et al. 2023
|
Scott et al. 2023 | |||||||||
UALVP specimens | ||||||||||
Ignacius cf. frugivorus
Matthew and Granger 1921
|
||||||||||
= Ignacius glenbowensis
Scott et al. 2023
|
Scott et al. 2023 | |||||||||
UALVP specimens | ||||||||||
Mammalia
- Primates
- Palaechthonidae
|
||||||||||
Phoxomylus puncticuspis n. gen., n. sp.
Fox 2011
|
Fox 2011 | |||||||||
(1 measurement) | ||||||||||
Plesiolestes sirokyi
Szalay 1973
|
||||||||||
= Torrejonia cf. sirokyi
Szalay 1973
|
Alroy 2002 | |||||||||
Mammalia
- Primates
- Plesiadapidae
|
||||||||||
Nannodectes intermedius
(Gazin 1971)
|
||||||||||
? Pronothodectes sp.
Gidley 1923
|
||||||||||
regarded as N. intermedius by Gingerich 1982a, but described by Fox 1990b | ||||||||||
Plesiadapis praecursor
Gingerich 1975
|
||||||||||
not clear if this is really present in light of Fox 1990b | ||||||||||
Plesiadapis cf. anceps
Simpson 1936
|
||||||||||
Mammalia
- Primates
- Carpolestidae
|
||||||||||
Elphidotarsius russelli n. sp.
Krause 1978
|
||||||||||
(5 measurements) | ||||||||||
Carpodaptes cf. hazelae
Simpson 1936
|
||||||||||
Mammalia
- Primates
- Picrodontidae
|
||||||||||
Picrodus silberlingi
Douglass 1908
|
||||||||||
(7 measurements) | ||||||||||
= Picrodus canpacius n. sp.
Scott and Fox 2005
|
Scott and Fox 2005 | |||||||||
Mammalia
- Dermoptera
|
||||||||||
Elpidophorus cf. elegans
Simpson 1927
|
||||||||||
Mammalia
- Nyctitheriidae
|
||||||||||
Nyctitheriidae indet.
Simpson 1928
|
||||||||||
Limaconyssus sp.
Gingerich 1987
|
||||||||||
Leptacodon cf. tener
Matthew and Granger 1921
|
||||||||||
"Leptacodon" munusculum
Simpson 1935
|
||||||||||
Leptacodon cf. packi
Jepsen 1930
|
||||||||||
cf. Nyctitherium sp.
Marsh 1872
|
||||||||||
said to be new | ||||||||||
Mammalia
- Periptychidae
|
||||||||||
? Periptychidae indet.
Cope 1882
|
||||||||||
Mammalia
- Phenacodontidae
|
||||||||||
Ectocion collinus
Russell 1929
|
||||||||||
Mammalia
- Procreodi
- Arctocyonidae
|
||||||||||
Claenodon montanensis
(Gidley 1919)
|
||||||||||
= Arctocyon cf. montanensis
Gidley 1919
|
Alroy 2002 | |||||||||
synonym of Arctocyon corrugatus | ||||||||||
? Mimotricentes sp.
Simpson 1937
|
||||||||||
Colpoclaenus cf. keeferi
Patterson and McGrew 1962
|
||||||||||
? Oxyprimus sp.
Van Valen 1978
|
||||||||||
Thryptacodon orthogonius
(Russell 1929)
|
||||||||||
= Chriacus orthogonius
Russell 1929
|
Alroy 2002 | |||||||||
= Thryptacodon orthogonius
Russell 1929
|
Scott et al. 2002 | |||||||||
Chriacus cf. baldwini
(Cope 1882)
|
||||||||||
Chriacus pelvidens
(Cope 1881)
|
||||||||||
Mammalia
- Creodonta
|
||||||||||
Creodonta indet.
(Cope 1875)
|
||||||||||
Mammalia
- Viverravidae
|
||||||||||
Simpsonictis cf. tenuis
(Simpson 1935)
|
||||||||||
Simpsonictis pegus
Gingerich and Winkler 1985
|
||||||||||
Mammalia
- Carnivora
|
||||||||||
Pristinictis connata n. sp.
Fox and Youzwyshyn 1994
|
Fox and Youzwyshyn 1994 | |||||||||
presumably includes new viverravid of Fox (3 measurements) | ||||||||||
Mammalia
- Acreodi
- Oxyclaenidae
|
||||||||||
? Oxyclaeninae indet.
(Scott 1892)
|
||||||||||
invalid subgroup of Acreodi | ||||||||||
said to be new | ||||||||||
Mammalia
- Acreodi
- Mesonychidae
|
||||||||||
Mesonychidae indet.
Cope 1875
|
||||||||||
Mammalia
- Condylarthra
|
||||||||||
Claenodon sp.
Scott 1892
|
||||||||||
= Condylarthra indet.
Cope 1881
|
Alroy 2002 | |||||||||
Desmatoclaenus sp.
Gazin 1941
|
||||||||||
Mammalia
- Macroscelidea
- Apheliscidae
|
||||||||||
Apheliscinae indet.
Matthew 1918
|
||||||||||
said to be new | ||||||||||
= Gingerichia hystrix n. sp.
Zack et al. 2005
|
Zack et al. 2005 | |||||||||
UALVP 43082 - type (left p4); numerous referred UALVP material | ||||||||||
Litomylus sp.
Simpson 1935
|
||||||||||
said to be new (7 measurements) | ||||||||||
= Litomylus grandaletes n. sp.
Scott et al. 2002
|
Scott et al. 2002 | |||||||||
Litomylus dissentaneus
Simpson 1935
|
||||||||||
Mammalia
- Macroscelidea
|
||||||||||
Litocherus sp.
Gingerich 1983
|
||||||||||
Litocherus cf. lacunatus
(Gazin 1956)
|
||||||||||
Mammalia
- Proteutheria
|
||||||||||
Palaeoryctoidea indet.
Winge 1917
|
||||||||||
said to be new | ||||||||||
Mammalia
- Proteutheria
- Palaeoryctidae
|
||||||||||
Palaeoryctidae indet.
Winge 1917
|
||||||||||
three forms | ||||||||||
Palaeoryctes cf. punctatus
Van Valen 1966
|
||||||||||
Didelphodontinae indet.
Simpson 1927
|
||||||||||
Pararyctes sp.
Van Valen 1966
|
||||||||||
said to be new (3 measurements) | ||||||||||
= Pararyctes rutherfordi n. sp.
Scott et al. 2002
|
Scott et al. 2002 | |||||||||
Pararyctes pattersoni
Van Valen 1966
|
||||||||||
Mammalia
- Apatemyidae
|
||||||||||
Jepsenella cf. praepropera
Simpson 1940
|
||||||||||
Mammalia
- Cimolestidae
|
||||||||||
Paleotomus sp.
Van Valen 1967
|
||||||||||
said to be new (5 measurements) | ||||||||||
= Paleotomus junior
Scott et al. 2002
|
Scott et al. 2002 | |||||||||
Paleotomus senior
(Simpson 1937)
|
||||||||||
Mammalia
- Pantolestidae
|
||||||||||
Propalaeosinopa septentrionalis
(Russell 1929)
|
||||||||||
= Bessoecetor septentrionalis
Russell 1929
|
Scott et al. 2002 | |||||||||
Mammalia
- Pentacodontidae
|
||||||||||
Pentacodontidae indet.
Simpson 1937
|
||||||||||
said to be new | ||||||||||
Bisonalveus browni
Gazin 1956
|
||||||||||
Mammalia
- Pantodonta
|
||||||||||
Pantodonta indet.
Cope 1873
|
||||||||||
Mammalia
|
||||||||||
Peradectes sp.
Matthew and Granger 1921
|
||||||||||
Chronoperatidae
|
||||||||||
Chronoperates paradoxus n. gen., n. sp.
Fox et al. 1992
|
Fox et al. 1992 | |||||||||
see common names |
Geography
Country: | Canada | State/province: | Alberta |
Coordinates: | 51.2° North, 114.4° West (view map) | ||
Paleocoordinates: | 57.7° North, 92.1° West | ||
Basis of coordinate: | stated in text | ||
Altitude: | 1059 meters | ||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Paleocene |
10 m.y. bin: | Cenozoic 1 | ||
*Period: | Tertiary | *Local age/stage: | Early/Lower Tiffanian |
Key time interval: | Ti1 | ||
Age range of interval: | 61.70000 - 56.80000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Paskapoo | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: 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) |
Lithology and environment
Primary lithology: | pebbly,shelly/skeletal,green siltstone |
Lithology description: "poorly bedded grayish−green siltstones, rich in broken bivalve and gastropod shells that are accompanied by bits of coalified wood and occasional well−rounded pebbles" (Fox 2011) | |
Environment: | fluvial-lacustrine indet. |
Geology comments: "Paskapoo sediments were deposited in the channels and floodplains of small to moderate-sized rivers, and in ponds, lakes, and swamps" (Fox 2011) |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection methods: | bulk,chemical,sieve | ||
Collection size: | 1700 specimens | ||
Reason for describing collection: | biostratigraphic analysis | ||
Collectors: | G. P. Youzwyshyn | Collection dates: | 1988 |
Collection method comments: see Scott et al. 2002
fossils were presumably collected over numerous field seasons | |||
Taxonomic list comments:same as the list given by Fox 1990a |
Metadata
Also known as: | Cochrane 11; Cochrane II | ||
Database number: | 14939 | ||
Authorizer: | J. Alroy, P. Mannion, K. Beard, P. Holroyd | Enterer: | J. Alroy, K. Beard, P. Holroyd, P. Mannion |
Modifier: | J. Alroy | Research group: | vertebrate |
Created: | 1993-02-18 00:00:00 | Last modified: | 2011-02-24 02:53:46 |
Access level: | the public | Released: | 1993-02-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
1534. | 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] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] | |
35300 | R. C. Fox. 2011. An unusual early primate from the Paleocene Paskapoo Formation, Alberta, Canada. Acta Palaeontologica Polonica 56(1):1-10 [J. Alroy/J. Alroy] | |
828 | R. C. Fox, G. P. Youzwyshyn, and D. W. Krause. 1992. Post-Jurassic mammal-like reptile from the Palaeocene. Nature 358:233-235 [J. Alroy/M. Sommers/J. Alroy] | |
1542 | R. C. Fox and G. P. Youzwyshyn. 1994. New primitive carnivorans (Mammalia) from the Paleocene of western Canada, and their bearing on relationships of the order. Journal of Vertebrate Paleontology 14(3):382-404 [J. Alroy/J. Alroy/J. Marcot] | |
65027 | J. D. Gardner and D. G. DeMar. 2013. Mesozoic and Palaeocene lissamphibian assemblages of North America: a comprehensive review. Palaeobiodiversity and Palaeoenvironments 93:459-515 [P. Holroyd/P. Holroyd/M. Carrano] | |
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] | |
10095 | C. S. Scott. 2004. A new species of the ptilodontoiid multituberculate Prochetodon (Mammalia, Allotheria) from the Paleocene Paskapoo Formation of Alberta, Canada. Canadian Journal of Earth Sciences 41(2):237-246 [J. Alroy/J. Alroy/J. Alroy] | |
7614 | C. S. Scott, R. C. Fox, and G. P. Youzwyshyn. 2002. New earliest Tiffanian (late Paleocene) mammals from Cochrane 2, southwestern Alberta, Canada. Acta Palaeontologica Polonica 47(4):691-704 [J. Alroy/J. Alroy/J. Alroy] | |
14679 | C. S. Scott and R. C. Fox. 2005. Windows on the evolution of Picrodus (Plesiadapiformes: Primates): morphology and relationships of a species complex from the Paleocene of Alberta. Journal of Paleontology 79(4):635-657 [J. Alroy/J. Alroy] | |
33356 | C. S. Scott and D. W. Krause. 2006. Multituberculates (Mammalia, Allotheria) from the earliest Tiffanian (late Paleocene) Douglass Quarry, eastern Crazy Mountains Basin, Montana. Contributions from the Museum of Paleontology, University of Michigan 31(10):211-243 [K. Beard/K. Beard] | |
84657 | C. S. Scott, S. López-Torres, M. T. Silcox and R. C. Fox. 2023. New paromomyids (Mammalia, Primates) from the Paleocene of southwestern Alberta, Canada, and an analysis of paromomyid interrelationships. Journal of Paleontology 97(2):477-498 [P. Mannion/P. Mannion] | |
19168 | C. S. Scott, M. W. Webb, and R. C. Fox. 2006. Horolodectes sunae, an enigmatic mammal from the late Paleocene of Alberta, Canada. Journal of Paleontology 80(5):1009-1025 [J. Alroy/J. Alroy] | |
42892 | S. P. Zack, T. A. Penkrot, D. W. Krause and M. C. Maas. 2005. A new apheliscine "condylarth" mammal from the late Paleocene of Montana and Alberta and the phylogeny of "hyopsodontids". Acta Palaeontologica Polonica 50(4):809-830 [P. Mannion/P. Mannion] |