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Yueosaurus tiantaiensis

Reptilia - Jeholosauridae

Taxonomy
Yueosaurus tiantaiensis was named by Zheng et al. (2012) [A small ornithischian dinosaur distinguished by the following unique combination of characters including autapomorphies (marked*) within basal Ornithopoda: prominent and slightly ventrally directed cervical parapophyses; slender and posteriorly inclined caudal neural spines; *anteroventral expansion of the scapula exceeds its posteroventral expansion, and its posterior edge is almost perpendicular to the shaft; *scapula bears a distinctive ventroscapular groove; *scapula also possesses both a supraglenoidal buttress and supraglenoid fossa; distal fibula anteroposteriorly compressed and tightly appressed to the tibia.]. Its type specimen is ZMNH M8620, a set of postcrania (Consists of a partial postcranial skeleton including six posterior cervical vertebrae, five anterior dorsal vertebrae, two middle dorsal vertebrae, nine c), and it is a 3D body fossil. Its type locality is Construction site, G15w Expressway (Shangsan), which is in an Albian/Cenomanian lacustrine - small sandstone in the Liangtoutang Formation of China. It is the type species of Yueosaurus.

Synonymy list
YearName and author
2012Yueosaurus tiantaiensis Zheng et al. p. 210 figs. 2-7

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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
Sauropsida
classReptilia
subclassEureptilia()
RankNameAuthor
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Ornithischia()
Neornithischia()
familyJeholosauridae
genusYueosaurus
speciestiantaiensis

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
W. Zheng et al. 2012A small ornithischian dinosaur distinguished by the following unique combination of characters including autapomorphies (marked*) within basal Ornithopoda: prominent and slightly ventrally directed cervical parapophyses; slender and posteriorly inclined caudal neural spines; *anteroventral expansion of the scapula exceeds its posteroventral expansion, and its posterior edge is almost perpendicular to the shaft; *scapula bears a distinctive ventroscapular groove; *scapula also possesses both a supra-glenoidal buttress and supraglenoid fossa; distal fibula anteroposteriorly compressed and tightly appressed to the tibia.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: gregariouso
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: herbivoreo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2004-12-14 12:50:52
Modified: 2004-12-14 14:50:52
Source: o = order
References: Kiessling 2004, Marsh 1875

Age range: base of the Albian to the top of the Cenomanian or 113.00000 to 93.90000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Albian - Cenomanian113.0 - 93.9China (Zhejiang) Yueosaurus tiantaiensis (type locality: 144535)