| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Chaoyangsaurus
Taxonomy
Chaoyangsaurus was named by Zhao et al. (1999). It is the type genus of Chaoyoungosauroidea.
It was assigned to Ceratopsia by Makovicky (2001) and Xu et al. (2006); to Neoceratopsia by Sereno (1999), Sereno (2000), You and Dodson (2003), You and Dodson (2004), Butler et al. (2007) and Jin et al. (2009); to Ceratopsia by Buchholz (2002), Butler et al. (2008), Tanoue et al. (2009) and Han et al. (2012); and to Chaoyangsauridae by Zhao et al. (2006), Han et al. (2015), Zheng et al. (2015), Morschhauser et al. (2019) and Yu et al. (2020).
It was assigned to Ceratopsia by Makovicky (2001) and Xu et al. (2006); to Neoceratopsia by Sereno (1999), Sereno (2000), You and Dodson (2003), You and Dodson (2004), Butler et al. (2007) and Jin et al. (2009); to Ceratopsia by Buchholz (2002), Butler et al. (2008), Tanoue et al. (2009) and Han et al. (2012); and to Chaoyangsauridae by Zhao et al. (2006), Han et al. (2015), Zheng et al. (2015), Morschhauser et al. (2019) and Yu et al. (2020).
Synonyms
|
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Chaoyangosaurus Zhao p. 300 |
| 1983 | Chaoyangosaurus Zhao and Cheng |
| 1985 | Chaoyoungosaurus Zhao p. 289 |
| 1992 | Chaoyangosaurus Dong p. 166 |
| 1994 | Chaoyangosaurus Olshevsky and Ford p. 91 |
| 1999 | Chaoyangsaurus Sereno p. 2138 fig. 2 |
| 1999 | Chaoyangsaurus Zhao et al. |
| 2000 | Chaoyangsaurus Sereno p. 487 |
| 2001 | Chaoyangsaurus Makovicky p. 254 fig. 18.3 |
| 2002 | Chaoyangsaurus Buchholz p. 20 |
| 2003 | Chaoyangsaurus You and Dodson |
| 2004 | Chaoyangosaurus Chinnery pp. 584-585 fig. 9 |
| 2004 | Chaoyangsaurus You and Dodson p. 480 |
| 2006 | Chaoyangsaurus Xu et al. p. 2139 fig. 3 |
| 2006 | Chaoyangsaurus Zhao et al. p. 472 |
| 2007 | Chaoyangsaurus Butler et al. p. S19 fig. S2 |
| 2008 | Chaoyangsaurus Butler et al. p. 22 figs. 2-4 |
| 2009 | Chaoyangsaurus Jin et al. p. 204 fig. 4 |
| 2009 | Chaoyangsaurus Tanoue et al. p. 426 |
| 2012 | Chaoyangsaurus Han et al. p. 1391 fig. 14 |
| 2015 | Chaoyangsaurus Han et al. p. 3 |
| 2015 | Chaoyangsaurus Zheng et al. p. 6 fig. 3 |
| 2019 | Chaoyangsaurus Morschhauser et al. p. 129 fig. 10 |
| 2020 | Chaoyangsaurus Yu et al. p. 5 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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. †Chaoyangsaurus Zhao et al. 1999
show all | hide all
†Chaoyangsaurus youngi Zhao et al. 1999
hide
Invalid names: Chaoyangosaurus liaosiensis Zhao and Cheng 1983 [replaced]
Invalid names: Chaoyangosaurus Zhao and Cheng 1983 [replaced]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
|
|
||||
| Source: subo = suborder, o = order | |||||
| References: Norman and Weishampel 1991, Marsh 1875 | |||||
Age range: base of the Late/Upper Kimmeridgian to the top of the Valanginian or 155.70000 to 132.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Kimmeridgian - Valanginian | China (Liaoning) | Chaoyangosaurus liaosiensis (10755) |