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Leptalestes cooki

Mammalia - Pediomyidae

Taxonomy
Pediomys cooki was named by Clemens (1966). Its type specimen is UCMP 47738, a maxilla (right fragmentary maxilla with P3 and M1-3), and it is not a trace fossil. Its type locality is Bushy Tailed Blowout, which is in a Lancian terrestrial shale in the Lance Formation of Wyoming.

It was recombined as Leptalestes cooki by Davis (2007) and Wilson et al. (2010).

Synonymy list
YearName and author
1966Pediomys cooki Clemens
1979Pediomys cooki Clemens p. 193
2004Pediomys cooki Kielan-Jaworowska et al. pp. 443, 457
2007Leptalestes cooki Davis p. 241
2010Leptalestes cooki Wilson et al. p. 513

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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
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
superfamilyPediomyoideaSimpson 1927
familyPediomyidae()
genusLeptalestes
speciescooki()

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.

†Leptalestes cooki Clemens 1966
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: omnivoresubc
Reproduction: viviparoussubc
Created: 2011-04-28 11:05:11
Modified: 2011-04-27 20:05:35
Source: subc = subclass, c = class, subp = subphylum
References: Hopson 1973, Hendy et al. 2009, Clemens 1979, Carroll 1988, Lillegraven 1979

Age range: base of the Late/Upper Campanian to the top of the Puercan or 83.50000 to 63.30000 Ma

Collections (22 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Campanian83.5 - 70.6USA (New Mexico) Pediomys cooki (14498)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (Colorado) Leptalestes cooki (167302)
Early/Lower Maastrichtian70.6 - 66.0Canada (Alberta) Pediomys cooki (14502)
Lancian70.6 - 66.0USA (Colorado) Leptalestes cooki (96083)
Lancian70.6 - 66.0USA (South Dakota) Pediomys cooki (14612)
Lancian70.6 - 66.0USA (Montana) Pediomys cooki (14515 14517 14523 14549 14616 172642 172644)
Lancian70.6 - 66.0USA (Wyoming) Pediomys cooki (14505 type locality: 14519 14538 14566 14570 14598 14641)
Late/Upper Maastrichtian70.6 - 66.0USA (Montana) Leptalestes cooki (183109)
Late/Upper Maastrichtian70.6 - 66.0USA (Wyoming) Pediomys cooki (14585)
Puercan66.0 - 63.3USA (Montana) Leptalestes cooki (14801)