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Arctocyon

Mammalia - Procreodi - Arctocyonidae

Synonymy list
YearName and author
1841Arctocyon Blainville
1875Arctocyon Bourguignat
1880Arctocyon Cope
1902Arctocyon Hay p. 746
1930Arctocyon Hay p. 463
1997Arctocyon McKenna and Bell
1998Arctocyon Archibald
2001Arctocyon Thewissen et al. p. suppl.
2004Arctocyon Kondrashov and Lucas p. 11
2011Arctocyon Tabuce et al. p. 152
2013Arctocyon Scott et al.
2017Arctocyon Halliday et al. p. 525

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
RankNameAuthor
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
orderProcreodiMatthew 1915
familyArctocyonidaeMurray 1866
genusArctocyonBlainville 1841

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 acrogenius Gazin 1956
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Invalid names: Arctocyonides mumak Van Valen 1978 [synonym]
†Arctocyon corrugatus Cope 1883
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Invalid names: Neoclaenodon montanensis Gidley 1919 [synonym]
†Arctocyon ferox Cope 1883
†Arctocyon nexus Gazin 1956
Diagnosis
ReferenceDiagnosis
P. E. Kondrashov and S. G. Lucas 2004Large 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
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: ground dwellingf
Diet: omnivoref
Reproduction: viviparoussubc
Created: 2005-08-31 13:54:39
Modified: 2011-04-24 18:06:44
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Lillegraven 1979, Carroll 1988, Archibald 1998, Ji et al. 2002, Hendy et al. 2009

Age range: base of the Puercan to the top of the Late/Upper Paleocene or 66.00000 to 56.00000 Ma

Collections (86 total)


Time interval Ma Country or state Original ID and collection number
Puercan66.0 - 63.8USA (New Mexico) A. ferox (74549 125183)
Danian66.0 - 61.66USA (North Dakota) A. sp. (14962)
Puercan - Torrejonian66.0 - 60.9USA (New Mexico) A. ferox (193958)
Torrejonian63.8 - 60.9USA (Texas) Claenodon mumak (14956)
Torrejonian63.8 - 60.9USA (Wyoming) A. ferox (14886) A. ferox, Arctocyonides montanensis (14912) Claenodon montanensis (14898)
Torrejonian63.8 - 60.9USA (New Mexico) A. ferox (14810 14815 14825 14833 14835 14891 14893 118037 179481) Claenodon sp. (14819)
Torrejonian63.8 - 60.9Canada (Alberta) A. ferox (143200) Claenodon montanensis (14822)
Torrejonian63.8 - 60.9USA (Montana) A. ferox (14913) Claenodon montanensis (14921) Claenodon vecordensis (14907) Neoclaenodon montanensis, A. ferox (14906)
Torrejonian - Tiffanian63.8 - 56.2USA (Wyoming) A. ferox (14820 14837 14841) A. sp. (14838 14844 14845 14850)
Ti160.9 - 56.2Canada (Alberta) Claenodon montanensis (14939)
Ti360.9 - 56.2Canada (Alberta) A. ferox, A. corrugatus (14928) Claenodon ferox (14992)
Ti460.9 - 56.2Canada (Saskatchewan) A. mumak, A. corrugatus (14978)
Tiffanian60.9 - 56.2Canada (Alberta) Claenodon sp. (14995)
Tiffanian60.9 - 56.2USA (Montana) A. ferox (14937) Claenodon ferox (15037 15042 15043 15051 15052) Claenodon montanensis (15025 15064)
Tiffanian60.9 - 56.2USA (Colorado) Arctocyonides mumak (174227)
Tiffanian60.9 - 56.2USA (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)
Late/Upper Paleocene59.24 - 56.0France (Oise) A. primaevus (166598)
Late/Upper Paleocene59.24 - 56.0USA (Wyoming) A. nexus (188220) A. sp., A. mumak (15018 15024)
Thanetian59.24 - 56.0France (Champagne-Ardenne) A. primaevus (137125)
Clarkforkian56.2 - 54.9USA (Wyoming) Anacodon nexus (15075 15092) A. nexus (190431 190432 190450 190455)