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Sinozapus volkeri

Mammalia - Rodentia - Dipodidae

Taxonomy
Sinozapus volkeri was named by Qiu and Storch (2000). Its type specimen is IVPP V11911, a tooth (M1 sup. sin.), and it is not a trace fossil. Its type locality is Bilike, which is in a Pliocene lacustrine horizon in China. It is the type species of Sinozapus.

Synonymy list
YearName and author
2000Sinozapus volkeri Qiu and Storch p. 188

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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
superfamilyDipodoideaFischer 1817
familyDipodidaeWaterhouse 1842
genusSinozapus
speciesvolkeri

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 2000Large-sized; M1 and M2 of subequal size. Occlusal outline of M1 and M2 square. Protocone and hypoconeof M1-3 inflated. Two strong lophs (protolophule I and II) on M2-3, connecting paracone with anterior and posterior arm of protocone. Sinus wide mesiodistally on M1 and well developed on M2; M3 with shallow protoflexus and sinus. Tendency to develop longitudinal spurs on meso-, meta-, and posteroloph of M1-2. Ectolophid of m1-2 oriented parallel to long axis of tooth. m1 without distinct mesoconid, reduced anteroconid, inflated hypoconid, and connection between protoconid and ectolophid. m3 conspicuously tapering posteriorly, with strong connection between metaconid and mesolophid and reduced posterolophid.