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Jeholbaatar

Mammalia - Multituberculata - Eobaataridae

Taxonomy
Jeholbaatar was named by Wang et al. (2019). It is not extant.

It was assigned to Eobaataridae by Wang et al. (2019).

Species
J. kielanae

Synonymy list
YearName and author
2019Jeholbaatar Wang et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
RankNameAuthor
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Allotheria()
orderMultituberculataCope 1884
familyEobaataridae
genusJeholbaatar

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.

G. †Jeholbaatar Wang et al. 2019
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†Jeholbaatar kielanae Wang et al. 2019
Diagnosis
ReferenceDiagnosis
H. Wang et al. 2019Dental formula of I3·C0·P5·M2/I1·C0·P3·M2 (I, incisor; C, canine; P, premolar; M, molar; superscript and subscript denote upper and lower teeth, respectively), with the following multituberculate characteristics (Extended Data Figs. 1, 2): cranium dorsoventrally compressed; masseteric fossa anteriorly extending below lower premolars; lingual offset of M2 relative to M1; enlarged single lower incisor; bladelike P4; definitive mammalian middle ear (Extended Data Figs. 3, 4). Among multituberculates, Jeholbaatar is referable to eobaatarids on the basis of: upper canines absent; I3 transversely wide; and eight serrations and a posterolabial cusp on P4. Jeholbaatar differs from most eobaatarids (except for Eobaatar and Heishanbaatar) in having eight serrations on P4; differs from Eobaatar in having reduced P2–3, more buccal cusps on M1, and a ridged cusp row on P5; differs from Heishanbaatar in having an oval lateral outline of P3 and more cusps of lower molars; and differs from Sinobaatar in having a posterior cuspule on I2, two cusp rows of P5, and different cusp counts of upper and lower molars.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: arborealo
Diet: herbivoreo
Created: 2005-09-01 17:42:57
Modified: 2005-09-01 19:42:57
Source: o = order, c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988, Hopson 1973, Jenkins and Krause 1983
Collections
No collection or age range data are available