Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy External Literature Search Age range and collections

Eudinoceras crassum

Mammalia - Amblypoda - Coryphodontidae

Taxonomy
Eudinoceras crassum was named by Tong and Tang (1977). Its type specimen is IVPP V4927, a tooth, and it is a 3D body fossil. Its type locality is Dongjun formation, Baibi, Tiandong county, Guangxizhuangzu zizhiqu, which is in an Eocene terrestrial lime mudstone/limestone in the Dongjun Formation of China.

Synonymy list
YearName and author
1977Eudinoceras crassum Tong and Tang

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
OlfactoresJefferies 1991
subphylumVertebrata
Gnathostomata()
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
RankNameAuthor
Therapsida()
infraorderCynodontia()
Epicynodontia
infraorderEucynodontia
Probainognathia
Mammaliamorpha
Mammaliaformes
classMammalia
subclassTribosphenida()
infraclassEutheria()
Placentalia
Epitheria
UngulataLinnaeus 1766
orderAmblypodaCope 1884
suborderPantodonta(Cope 1873)
familyCoryphodontidaeMarsh 1876
genusEudinoceras
speciescrassum

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
Y. Tong and Y. Tang 1977Compared with Eudinoceras mongoliensis and Eudinoceras kholobochiensis this species is more robust. Upper Incisiva: tusk-like, the basal transverse section is elliptic in shape, near the top it is triangular. Second upper molar: V-shaped angle of the ridge of the metaconus is relatively small, about 30°; metaconus and protoconus are near the lingual side, the protoloph and the anterior wing of the metaconus ridge are nearly rectangular to the vertical axis of the tooth; Inner cingulum long, it passes the basis of protocone and metacone. Lower P3-4: posterior smaller than anterior, V-shaped ridge with small angle, cristid obliqua is degenerated, it is also near the lingual side, the paralophid is week. Third lower molar: cristid obliqua week, extends up to the metaconid, the end is swallen, metalophid and hypolophid strong and nearly straight to the axis of the tooth.