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Oklatheridium szalayi

Mammalia - Deltatheroida - Deltatheridiidae

Taxonomy
Oklatheridium szalayi was named by Davis et al. (2008). Its type specimen is OMNH 62410, a tooth (LM2 missing the protoconal region), 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 Oklatheridium.

Synonymy list
YearName and author
2008Oklatheridium szalayi Davis
2008Oklatheridium szalayi Davis et al. p. 8 figs. 1.3-1.4
2011Oklatheridium szalayi Davis and Cifelli p. 445

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
Therapsida()
RankNameAuthor
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
Theriamorpha(Rowe 1993)
Theriiformes(Rowe 1988)
Trechnotheria
Cladotheria
Boreosphenida()
subclassTheria
subclassMetatheria()
orderDeltatheroidaKielan-Jaworowska 1982
familyDeltatheridiidae
genusOklatheridium
speciesszalayi

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.

Diagnosis
ReferenceDiagnosis
B. M. Davis and R. L. Cifelli 2011diagnosis.—Species of Oklatheridium differing from O. minax in smaller size, relatively smaller stylocone, and greater relative size difference between M1 and M2