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Dakotadens pertritus

Mammalia

Taxonomy
Dakotadens pertritus was named by Cifelli et al. (2016). Its type specimen is OMNH 33247, a tooth (left upper molar, lacking protocone), and it is a 3D body fossil. Its type locality is OMNH V695, Mussentuchit, which is in a Cenomanian floodplain sandstone in the Cedar Mountain Formation of Utah.

Synonymy list
YearName and author
2016Dakotadens pertritus Cifelli et al. p. 70

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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
RankNameAuthor
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
subclassMetatheria()
—Marsupialiformes
genusDakotadens
speciespertritus

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.

†Dakotadens pertritus Cifelli et al. 2016
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Diagnosis
ReferenceDiagnosis
R. L. Cifelli et al. 2016Similar to D. morrowi, but smaller with higher molar crowns. The paracone and metacone are closer together than in D. morrowi, with the centrocrista V-shaped in buccal view; protocone mesiodistally shorter. The stylocone is the largest stylar cusp when present (lacking on the last upper molar); differs from D. morrowi in that cusps in the C and D positions are less developed. The postmetacrista has a distinct notch at the base of the metacone; this notch is poorly developed or lacking in D. morrowi. Lower molars have a greater talonid/trigonid height differential, with relatively narrower talonid, and the protoconid is significantly taller than the metaconid and paraconid; cusp f is less developed, not forming a strong precingulid as seen in D. morrowi. All cusps of upper and lower molars show a distinctive pattern of heavy apical and occlusal wear.
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: Lillegraven 1979, Carroll 1988, Clemens 1979, Hopson 1973, Hendy et al. 2009

Age range: Early/Lower Cenomanian or 99.60000 to 93.50000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Cenomanian99.6 - 93.5USA (Utah) Dakotadens pertritus (14397 14398 14399 14403 181580) Tribotheria indet. (type locality: 14396)