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Obamadon gracilis

Reptilia

Taxonomy
Obamadon gracilis was named by Longrich et al. (2012). Its type specimen is UCMP 128873, a mandible (right dentary), and it is a 3D body fossil. Its type locality is Baldy Butte SW-Blazing Saddle, which is in a Lancian terrestrial sandstone in the Hell Creek Formation of Montana. It is the type species of Obamadon.

Synonymy list
YearName and author
2012Obamadon gracilis Longrich et al. fig. 1B

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda
RankNameAuthor
Reptiliomorpha
Anthracosauria
subclassAmphibiosauriaKuhn 1967
Cotylosauria()
Amniota
Sauropsida
classReptilia
Squamata()
Scincomorpha()
PolyglyphanodontiaAlifanov 2000
genusObamadon
speciesgracilis

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.

Obamadon gracilis Longrich et al. 2012
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Diagnosis
ReferenceDiagnosis
N. R. Longrich et al. 2012Small polyglyphanodontian characterized by the following combination of characters: dentary slender, symphysis weakly developed, tooth implantation subpleurodont, teeth lack basal expansion, tooth crowns with a tall central cusp separated from accessory cusps by deep lingual grooves