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Arctocyon nexus

Mammalia - Procreodi - Arctocyonidae

Taxonomy
Anacodon nexus was named by Gazin (1956). Its type specimen is USNM 21282, a mandible, and it is not a trace fossil. Its type locality is Buckman Hollow, which is in a Clarkforkian terrestrial claystone in the Wasatch Formation of Wyoming.

It was recombined as Arctocyon nexus by Secord (2008).

Synonymy list
YearName and author
1956Anacodon nexus Gazin pp. 8-9
2008Arctocyon nexus Secord

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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
—Therapsida()
RankNameAuthor
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
orderProcreodiMatthew 1915
familyArctocyonidaeMurray 1866
genusArctocyonBlainville 1841
speciesnexus()

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.

†Arctocyon nexus Gazin 1956
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Diagnosis
No diagnoses are available
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: Late/Upper Paleocene or 59.24000 to 56.00000 Ma

Collections (22 total)


Time interval Ma Country or state Original ID and collection number
Tiffanian60.9 - 56.2USA (Wyoming) Arctocyon nexus (15007 15057 26569 85096 190409 190411 190414 190418 190427 190437 190464 190468 190478 190493 190494)
Late/Upper Paleocene59.24 - 56.0USA (Wyoming) Arctocyon nexus (188220)
Clarkforkian56.2 - 54.9USA (Wyoming) Anacodon nexus (type locality: 15075 15092) Arctocyon nexus (190431 190432 190450 190455)