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Alphadon sahnii

Mammalia - Alphadontidae

Taxonomy
Alphadon sahnii was named by Lillegraven and McKenna (1986). Its type specimen is UCMP 125337, a tooth (isolated right M1), and it is not a trace fossil.

It was synonymized subjectively with Alphadon halleyi by Montellano (1988), Montellano (1992), Johanson (1996).

Synonymy list
YearName and author
1986Alphadon sahnii Lillegraven and McKenna p. 31 figs. 12A-J, 13A-D
1990Alphadon sahnii Cifelli
2004Alphadon sahnii Kielan-Jaworowska et al. pp. 443, 454-455

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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()
RankNameAuthor
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
familyAlphadontidaeMarshall et al. 1990
genusAlphadon
speciessahnii

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.

†Alphadon sahnii Lillegraven and McKenna 1986
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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: omnivoreg
Reproduction: viviparoussubc
Created: 2005-09-07 09:56:57
Modified: 2011-04-27 20:01:30
Source: g = genus, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Clemens 1979, Lillegraven 1979, Carroll 1988, Hopson 1973

Age range: Late/Upper Campanian or 83.60000 to 72.20000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Judithian83.6 - 72.2USA (Utah) Alphadon sp. (14467)
Judithian83.6 - 72.2USA (Wyoming) Alphadon sahnii (14439 14440)
Late/Upper Campanian83.6 - 72.2USA (Utah) Alphadon sahnii (14466)
Late/Upper Campanian83.6 - 72.2USA (Wyoming) Alphadon sahnii (70269 70453)