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Chuanqilong chaoyangensis
Taxonomy
Chuanqilong chaoyangensis was named by Han et al. (2014). Its type specimen is CJPM V001, a skeleton (nearly complete skull and skeleton.), and it is a 3D body fossil. Its type locality is Baishizui village, Goumenzi, which is in an Aptian terrestrial horizon in the Jiufotang Formation of China. It is the type species of Chuanqilong.
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Chuanqilong chaoyangensis Han et al. p. 2 fig. 3–8 |
| 2016 | Chuanqilong chaoyangensis Arbour and Currie p. 400 |
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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.
†Chuanqilong chaoyangensis Han et al. 2014
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. Han et al. 2014 | An ankylosaur distinguished from other ankylo- saurs by two autapomorphies: the glenoid fossa for the quadrate is at the same level as the dentary tooth row; and the distally tapering ischium is constricted at midshaft length. Chuanqilong also differs from all other ankylosaurians in having the following unique combination of character states: presence of a long retroarticular process (differs from all other ankylosaurians except Gargoyleo- saurus); presence of a slender, wedge-like lacrimal (differs from all other known ankylosaurians except Minmi); ratio of humerus to femur length of 0.88 (notably higher than in most known ankylosaurians except Hungarosaurus and Liaoningosaurus); the width of the proximal end of the humerus is half of the length of the humeral shaft (substantially different from that of Liaoningo- saurus, in which this ratio is 0.38); presence of subtriangular unguals (absent in all other ankylosaurs except Liaoningosaurus and Dyoplosaurus). | |
| V. M. Arbour and P. J. Currie 2016 | Glenoid fossa for quadrate is at same level as dentary tooth row; ischium is constricted at midshaft length; long retroarticular process (also present in Gargoyleosaurus); slender, wedge-like lacrimal (also present in Minmi); humerus: femur length ratio is 0.88 (higher than most ankylosaurs except Hungarosaurus and Liaoningosaurus); proximal width of humerus is half the length of humeral shaft (differs from Liaoningosaurus, where ratio is 0.38); subtriangular unguals (also present in Liaoningosaurus and Dyoplosaurus). |
Measurements
No measurements are available
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| Source: o = order | |||||
| References: Marsh 1875, Kiessling 2004 | |||||