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Leptarctus wortmani

Osteichthyes - Carnivora - Mustelidae

Taxonomy
Leptarctus wortmani was named by Matthew (1924). Its type specimen is AMNH 2575, a mandible (lower jaw with canine, p3, and p4), and it is a 3D body fossil. Its type locality is Leptarctus wortmani type, which is in a Clarendonian terrestrial horizon in the Ash Hollow Formation of Nebraska.

Sister species lacking formal opinion data
L. neimonguensis

Synonyms
Synonymy list
YearName and author
1924Leptarctus wortmani Matthew
2001Leptarctus kansasensis Lim and Martin
2001Leptarctus desuii Lim and Martin p. 314
2003Leptarctus (Pseudoleptarctus) genowaysi Lim and Martin
2009Leptarctus wortmani Korth and Baskin p. 41

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
RankNameAuthor
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Ferae()
—Pancarnivora
—CarnivoramorphaWyss and Flynn 1993
—CarnivoraformesFlynn et al.
orderCarnivora
suborderCaniformiaKretzoi 1943
infraorderCanoidea(Simpson 1931)
superfamilyArctoideaFlower 1869
—Mustelida
familyMustelidaeBatsch 1788
subfamilyLeptarctinaeGazin 1936
genusLeptarctus
specieswortmani

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.

†Leptarctus wortmani Matthew 1924
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Invalid names: Leptarctus (Pseudoleptarctus) genowaysi Lim and Martin 2003 [synonym], Leptarctus desuii Lim and Martin 2001 [synonym], Leptarctus kansasensis Lim and Martin 2001 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: scansorialf
Diet: omnivoreg
Reproduction: viviparoussubc
Created: 2011-06-14 12:10:25
Modified: 2011-06-13 21:10:25
Source: g = genus, f = family, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Korth and Baskin 2009, Lillegraven 1979, Nowak 1991, Ji et al. 2002, Carroll 1988

Age range: Clarendonian or 12.50000 to 9.40000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Barstovian - Hemphillian16.3 - 4.7USA (Nebraska) Leptarctus desuii (22852)
Clarendonian12.5 - 9.4USA (California) Leptarctus wortmani, Leptarctus sp. (19185)
Clarendonian12.5 - 9.4USA (Nebraska) Leptarctus wortmani (18095 18227)
Late/Upper Clarendonian12.5 - 9.4USA (Nebraska) Leptarctus wortmani (type locality: 110828)
Late/Upper Clarendonian12.5 - 9.4USA (Kansas) Leptarctus kansasensis (110829)