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Aratomys bilikeensis

Mammalia - Rodentia - Cricetidae

Taxonomy
Aratomys bilikeensis was named by Qiu and Storch (2000). Its type specimen is IVPP V11909, a tooth (m1 inf. sin.), and it is not a trace fossil. Its type locality is Bilike, which is in a Pliocene lacustrine horizon in China.

Synonymy list
YearName and author
2000Aratomys bilikeensis Qiu and Storch p. 195

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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
subclassTribosphenida()
infraclassEutheria()
Placentalia
EuarchontogliresMurphy et al. 2001
Glires()
orderRodentia
infraorderMyodontaSchaub 1958
superfamilyMuroideaIlliger 1811
familyCricetidaeFischer von Waldheim 1817
genusAratomysZazhigin 1977
speciesbilikeensis

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
Z. Qiu and G. Storch 2000Smaller than A. multifidus. Enemal and undifferenciated, no crown cementum. Anteroconid complex of m1 short and mushroom-shaped, Mimomys-ridge small to lacking, enamel islat and Mimomys-ridge vanishing after about 50% loss of the crown height through wear, dentin areas T1-T2 widely confluent. Fromation of enamel islet on m1 by folds which penetrate the anteroconid complex from the mesial (in most cases) or lingual tooth margin (occasionally)mesial (in most cases) or lingual tooth margin (occasionally) ("Pseudoschmelzinsel"). M3 with only one distal islet. Location of anterior and posterior root of m2 dorsally and labially, respectively, of the incisor. Very primitive enamel microstructure.