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Arctocyon
Taxonomy
Arctocyon was named by Blainville (1841). It is not extant. Its type is Arctocyon primaevus. It is the type genus of Arctocyonidae, Arctocyonoidea.
It was assigned to Canidae by Bourguignat (1875); to Arctocyoninae by Archibald (1998) and Kondrashov and Lucas (2004); and to Arctocyonidae by Blainville (1841), Cope (1880), Cope (1880), Hay (1902), Hay (1930), McKenna and Bell (1997), Thewissen et al. (2001), Tabuce et al. (2011), Scott et al. (2013) and Halliday et al. (2017).
It was assigned to Canidae by Bourguignat (1875); to Arctocyoninae by Archibald (1998) and Kondrashov and Lucas (2004); and to Arctocyonidae by Blainville (1841), Cope (1880), Cope (1880), Hay (1902), Hay (1930), McKenna and Bell (1997), Thewissen et al. (2001), Tabuce et al. (2011), Scott et al. (2013) and Halliday et al. (2017).
Synonymy list
Year | Name and author |
---|---|
1841 | Arctocyon Blainville |
1875 | Arctocyon Bourguignat |
1880 | Arctocyon Cope |
1902 | Arctocyon Hay p. 746 |
1930 | Arctocyon Hay p. 463 |
1997 | Arctocyon McKenna and Bell |
1998 | Arctocyon Archibald |
2001 | Arctocyon Thewissen et al. p. suppl. |
2004 | Arctocyon Kondrashov and Lucas p. 11 |
2011 | Arctocyon Tabuce et al. p. 152 |
2013 | Arctocyon Scott et al. |
2017 | Arctocyon Halliday et al. p. 525 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Arctocyon Blainville 1841
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†Arctocyon ferox Cope 1883
†Arctocyon nexus Gazin 1956
Diagnosis
Reference | Diagnosis | |
---|---|---|
P. E. Kondrashov and S. G. Lucas 2004 | Large arctocyonids that differ from Arctocyonides in having less bunodont lower molars with better devel- oped crests; differ from Anacodon in having large lower canines with well developed shearing surfaces and in the shape of the talonid basin of the lower molars, which is triangular, not rectangular. The genus Arctocyon differs from Colpoclaenus and Mentoclaenodon in lacking the crenulations of the enamel on the upper and lower molars. |
Measurements
No measurements are available
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Source: f = family, subc = subclass, c = class, subp = subphylum | |||||
References: Hendy et al. 2009, Ji et al. 2002, Archibald 1998, Carroll 1988, Lillegraven 1979 |
Age range: base of the Torrejonian to the top of the Thanetian or 63.80000 to 56.00000 Ma
Collections (86 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Puercan | USA (New Mexico) | A. ferox (74549 125183) | |
Danian | USA (North Dakota) | A. sp. (14962) | |
Puercan - Torrejonian | USA (New Mexico) | A. ferox (193958) | |
Torrejonian | USA (Montana) | A. ferox (14913) Claenodon montanensis (14921) Claenodon vecordensis (14907) Neoclaenodon montanensis, A. ferox (14906) | |
Torrejonian | USA (New Mexico) | A. ferox (14810 14815 14825 14833 14835 14891 14893 118037 179481) Claenodon sp. (14819) | |
Torrejonian | Canada (Alberta) | A. ferox (143200) Claenodon montanensis (14822) | |
Torrejonian | USA (Wyoming) | A. ferox (14886) A. ferox, Arctocyonides montanensis (14912) Claenodon montanensis (14898) | |
Torrejonian | USA (Texas) | Claenodon mumak (14956) | |
Torrejonian - Tiffanian | USA (Wyoming) | A. ferox (14820 14837 14841) A. sp. (14838 14844 14845 14850) | |
Ti1 | Canada (Alberta) | Claenodon montanensis (14939) | |
Ti3 | Canada (Alberta) | A. ferox, A. corrugatus (14928) Claenodon ferox (14992) | |
Ti4 | Canada (Saskatchewan) | A. mumak, A. corrugatus (14978) | |
Tiffanian | Canada (Alberta) | Claenodon sp. (14995) | |
Tiffanian | USA (Montana) | A. ferox (14937) Claenodon ferox (15037 15042 15043 15051 15052) Claenodon montanensis (15025 15064) | |
Tiffanian | USA (Wyoming) | A. ferox (14999) A. mumak (14950 15060 15061 190407) A. mumak, A. nexus (190411) A. nexus (15007 15057 26569 85096 190409 190414 190418 190427 190437 190464 190468 190478 190493 190494) Claenodon acrogenius (14964 15017) Claenodon acrogenius, Claenodon ferox, Claenodon montanensis (14989) Claenodon ferox (14997 15001 15067) Claenodon mumak (14952) Claenodon sp. (14981 14987 15049) | |
Tiffanian | USA (Colorado) | Arctocyonides mumak (174227) | |
Thanetian | France (Champagne-Ardenne) | A. primaevus (137125) | |
Late/Upper Paleocene | USA (Wyoming) | A. nexus (188220) A. sp., A. mumak (15018 15024) | |
Late/Upper Paleocene | France (Oise) | A. primaevus (166598) | |
Clarkforkian | USA (Wyoming) | Anacodon nexus (15075 15092) A. nexus (190431 190432 190450 190455) |