Classification of Scott et al. 2002
†Propalaeosinopa albertensis Simpson 1927
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G. †Propalaeosinopa Simpson 1927
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Or. †Multituberculata Cope 1884 [multituberculate]
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Infraor. †Cimolodonta McKenna 1975
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Subcl. Eutheria Huxley 1880 [eutherian]
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Fm. †Palaeoryctidae Winge 1917
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Fm. †Pantolestidae Cope 1884
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G. †Bessoecetor Simpson 1936
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†Bessoecetor septentrionalis Russell 1929
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Invalid names: Bessoecetor thomsoni Simpson 1936 [synonym], Palaeosinopa diluculi Simpson 1935 [synonym]
Or. †Condylarthra Cope 1881
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Fm. †Arctocyonidae Murray 1866 [condylarth]
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G. †Thryptacodon Matthew and Granger 1915
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†Thryptacodon orthogonius Russell 1929
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Invalid names: Chriacus pusillus Simpson 1935 [synonym], Thryptacodon belli Gazin 1956 [synonym], Thryptacodon demari Gazin 1956 [synonym]
†Ectocion collinus Russell 1929
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Invalid names: Meniscotherium semicingulatum Russell 1929 [synonym]