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Changchunsaurus parvus

Reptilia

Taxonomy
Changchunsaurus parvus was named by Zan et al. (2005). Its type specimen is JLUM L0403-j-Zn2, a skeleton, and it is a 3D body fossil. Its type locality is Shanqian, Liufangzi, Gongzhuling quarry, which is in an Aptian/Albian fluvial-lacustrine mudstone/sandstone in the Quantou Formation of China.

Synonymy list
YearName and author
2005Changchunsaurus parvus Zan et al. p. 43 figs. 2-5
2008Changchunsaurus parvus Chen et al. p. 309
2009Changchunsaurus parvus Butler and Sullivan p. 22
2010Changchunsaurus parvus Amiot et al. p. 354
2010Changchunsaurus parvus Jin et al. p. 197 figs. 1-10
2012Changchunsaurus parvus Han et al. p. 1371
2012Changchunsaurus parvus Zheng et al. p. 208
2013Changchunsaurus parvus Brown et al. p. 512
2014Changchunsaurus parvus Xing et al. p. 207
2018Changchunsaurus parvus Bell et al. p. 11
2018Changchunsaurus parvus Herne et al. p. 48
2019Changchunsaurus parvus Andrzejewski et al. p. 10
2019Changchunsaurus parvus Herne et al. p. 551
2019Changchunsaurus parvus Ibiricu et al. p. 279
2020Changchunsaurus parvus Dieudonné et al.
2020Changchunsaurus parvus Dieudonné et al. p. 411

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Ornithopoda()
genusChangchunsaurus
speciesparvus

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.

†Changchunsaurus parvus Zan et al. 2005
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Diagnosis
ReferenceDiagnosis
L. Jin et al. 2010Cerapodan ornithischian characterized by the following autapomorphies: (1) slit-like incisive foramen present on the midline of the premaxillary palate, medial to crowns three and four, with foramen positioned lateral to it on each side; (2) thickened and slightly rugose dorsolateral surface of the dentary, adjacent to the first three dentary teeth and continuous with a beveled surface on the predentary; (3) groove extending rostromedially along the lateral surface of the caudal half of the dentary and onto the medial surface of the coronoid process.
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: herbivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 20:40:05
Modified: 2009-01-03 22:40:05
Source: subo = suborder, o = order
References: Marsh 1875, Benton 1983

Age range: base of the Aptian to the top of the Albian or 125.00000 to 100.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Aptian - Albian125.0 - 100.5China (Jilin) Changchunsaurus parvus (type locality: 72321)