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Extrarius orhuni

Osteichthyes - Rodentia - Muridae

Taxonomy
Extrarius orhuni was named by Erten (2017). Its type specimen is GOP-5001, a tooth (left M1), and it is a 3D body fossil. Its type locality is Gökpınar, which is in a Quaternary terrestrial sandstone in the Tosunlar Formation of Turkmenistan. It is the type species of Extrarius.

Synonymy list
YearName and author
2017Extrarius orhuni Erten p. 3

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
RankNameAuthor
—Mammaliaformes
classMammalia
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—EuarchontogliresMurphy et al. 2001
—GliriformesWyss and Meng 1996
—Glires()
—Simplicidentata()
orderRodentia
infraorderMyodontaSchaub 1958
superfamilyMuroideaIlliger 1811
—Eumuroida
familyMuridaeIlliger 1811
genusExtrarius
speciesorhuni

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.

†Extrarius orhuni Erten 2017
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Diagnosis
ReferenceDiagnosis
H. Erten 2017The occlusal surface exhibits complete stephanodonty. The cusps t1, t2 and t3 have strong connections on M1. A connection in the form of a longitudinal crest exists between t1-t5 and t3-t5. A strong and garland-type connection exists between t4-t5-t6-t9-t8 and t7 or t4-t7 connection is absent while the other cusps are strongly connected. A cir- cular island shaped neoenterostyle is observed in the lingual part of the tooth. tma is absent on m1, and c1 and c2 are connected to each other (Figure 3).