Ectocion collinus Russell 1929 (condylarth)

Mammalia - Ungulata - Phenacodontidae

Synonyms: Ectocion montanensis Gidley 1935, Ectocion wyomingensis Gazin 1956, Gidleyina montanensis Gidley 1935, Gidleyina silberlingi Gidley 1935, Gidleyina superior Simpson 1935, Gidleyina wyomingensis Gazin 1956, Meniscotherium semicingulatum Russell 1929, Tetraclaenodon superior Simpson 1935

Belongs to Ectocion according to J. G. M. Thewissen 1990

See also Gazin 1956, Gingerich 1982, Krause and Gingerich 1983, Novacek et al. 1991, Schiebout 1974, Scott et al. 2002, Simpson 1935, Simpson 1937, West 1971 and Williamson and Lucas 1992

Sister taxa: Ectocion cedrus, Ectocion ignotum, Ectocion major, Ectocion mediotuber, Ectocion nanabeensis, Ectocion osbornianus, Ectocion parvus, Ectocion superstes

Type specimens:

  • Ectocion collinus: Its type locality is Cochrane 1, which is in a Tiffanian terrestrial horizon in the Porcupine Hills Formation of Canada
  • Gidleyina montanensis: Its type locality is Princeton Locs. (Miscellaneous), which is in a Tiffanian terrestrial horizon in the "Fort Union No. 3" (= Melville) Formation of Montana.
  • Gidleyina silberlingi: Its type locality is Melville Locality 27, which is in a Tiffanian terrestrial horizon in the "Fort Union No. 3" (= Melville) Formation of Montana.
  • Gidleyina wyomingensis: USNM 20790, a mandible. Its type locality is West End, which is in a Tiffanian terrestrial horizon in Wyoming.
  • Meniscotherium semicingulatum:
  • Tetraclaenodon superior: Its type locality is Melville Localities 11/13, which is in a Tiffanian terrestrial horizon in the "Fort Union No. 3" (= Melville) Formation of Montana.

Ecology: ground dwelling herbivore

Distribution:

• Paleocene of Canada (6: Alberta collections), United States (20: Montana, North Dakota, Wyoming)

Total: 26 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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