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Atokatheridium boreni

Mammalia - Deltatheroida - Deltatheridiidae

Taxonomy
Atokatheridium boreni was named by Kielan-Jaworowska and Cifelli (2001) [genotype]. Its type specimen is OMNH 61623, a tooth (RM2), and it is a 3D body fossil. Its type locality is McLeod Prison (OMNH V706), Tomato Hill, which is in an Aptian/Albian floodplain claystone/sandstone in the Antlers Formation of Oklahoma. It is the type species of Atokatheridium.

Synonymy list
YearName and author
2001Atokatheridium boreni Kielan-Jaworowska and Cifelli
2004Atokatheridium boreni Kielan-Jaworowska et al. pp. 411, 446-447
2011Atokatheridium boreni Davis and Cifelli p. 443

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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()
orderDeltatheroidaKielan-Jaworowska 1982
familyDeltatheridiidae
genusAtokatheridium
speciesboreni

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.

†Atokatheridium boreni Kielan-Jaworowska and Cifelli 2001
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Diagnosis
ReferenceDiagnosis
B. M. Davis and R. L. Cifelli 2011Small deltatheroidan differing from all other deltatheroidans in smaller size, weaker stylocone, shallower ectoflexus on mesial molars, slightly narrower parastylar lobe, trend of increasing width of metastylar lobe distally through molar series (excluding the unknown but hypothesized M4), greater height differential between the paracone and metacone, transversely wider protoconal region, and a taller protocone. Differs from Oklatheridium and Sulestes in weaker conules. Differs from Oklatheridium in slightly narrower metastylar lobe on M2, and in less reduction of the metastylar lobe on M3.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialsubc
Diet: carnivoref
Diet 2: durophagef
Reproduction: viviparoussubc
Created: 2005-09-07 09:03:54
Modified: 2005-09-07 11:21:30
Source: f = family, subc = subclass, c = class, subp = subphylum
References: Fox and Naylor 1995, Carroll 1988, Lillegraven 1979, Hopson 1973, Hendy et al. 2009

Age range: base of the Late/Upper Aptian to the top of the Early/Lower Albian or 119.57000 to 110.10000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Aptian - Early/Lower Albian119.57 - 110.1USA (Oklahoma) Atokatheridium boreni (type locality: 14392)