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Jeholosaurus shangyuanensis
Taxonomy
Jeholosaurus shangyuanensis was named by Xu et al. (2000). Its type specimen is IVPP V.12529, a partial skeleton, and it is a 3D body fossil. Its type locality is Lujiatun village, Shangyuan [general] (IVPP), which is in a Barremian/Aptian fluvial tuff in the Yixian Formation of China.
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Jeholosaurus shangyuanensis Xu et al. p. 319 figs. 1-2, Pl. 1-2 |
| 2002 | Jeholosaurus shangyuanensis Buchholz p. 19 |
| 2004 | Jeholosaurus shangyuanensis Norman et al. p. 395 |
| 2005 | Jeholosaurus shangyuanensis Zan et al. p. 190 |
| 2008 | Jeholosaurus shangyuanensis Butler et al. p. 10 |
| 2009 | Jeholosaurus shangyuanensis Barrett and Han p. 32 |
| 2009 | Jeholosaurus shangyuanensis Galton p. 214 |
| 2009 | Jeholosaurus shangyuanensis Godefroit et al. |
| 2012 | Jeholosaurus shangyuanensis Han et al. p. 1371 |
| 2012 | Jeholosaurus shangyuanensis Zheng et al. p. 208 |
| 2013 | Jeholosaurus shangyuanensis Brown et al. p. 512 |
| 2014 | Jeholosaurus shangyuanensis Xing et al. p. 207 |
| 2016 | Jeholosaurus shanyuanensis Becerra et al. p. 564 |
| 2018 | Jeholosaurus shangyuanensis Bell et al. p. 17 |
| 2018 | Jeholosaurus shangyuanensis Herne et al. p. 41 |
| 2019 | Jeholosaurus shangyuanensis Andrzejewski et al. p. 9 |
| 2019 | Jeholosaurus shangyuanensis Cruzado-Caballero et al. p. 216 |
| 2019 | Jeholosaurus shangyuanensis Herne et al. p. 551 |
| 2019 | Jeholosaurus shangyuanensis Ibiricu et al. p. 286 |
| 2020 | Jeholosaurus shangyuanensis Dieudonné et al. |
| 2020 | Jeholosaurus shangyuanensis Dieudonné et al. p. 411 |
| 2020 | Jeholosaurus shangyuanensis Han et al. p. 2 |
| 2020 | Jeholosaurus shangyuensis Yang et al. p. 2 |
| 2021 | Jeholosaurus shangyuanensis Breeden et al. p. 9 |
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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.
†Jeholosaurus shangyuanensis Xu et al. 2000
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. J. Butler et al. 2008 | Six premaxillary teeth; foramina present on dorsal surface of nasal; large foramen present in quadratojugal; predentary about 1.5 times as long as the premaxilla; pedal phalanx 3–4 times longer than other phalanges of pedal digit 3.
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| P. M. Barrett and F.-L. Han 2009 | (cranial features only: after Xu et al. 2000; Butler et al. 2008). One autapomorphy and a unique combination of character states support the validity of Jeholosaurus. Autapomorphy: presence of a row of small foramina on the lateral surface of the nasal immediately dorsal to the premaxillary articulation. Unique combination of character states: six premaxillary teeth (distinct from all other cerapodans, but present in Lesothosaurus and some ankylosaurs); presence of a foramen enclosed within the quadratojugal (distinct from all ornithischians except Hypsilophodon and Tenontosaurus); combined presence of nodular ornamentation on the postorbital and jugal (distinct from all ornithopods and non-cerapodan ornithischians, but also present in pachycephalosaurs, Archaeoceratops and Yinlong); and jugal caudal process bifurcated distally (distinct from all cerapodans except Psittacosaurus, but present in some early ornithischians including Emausaurus, Lesothosaurus and Scelidosaurus). |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Marsh 1875 | |||||
Age range: base of the Late/Upper Barremian to the top of the Early/Lower Aptian or 130.00000 to 122.46000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Barremian - Early/Lower Aptian | China (Liaoning) | Jeholosaurus shangyuanensis (type locality: 53493) |