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Xiaosaurus (small lizard)
Taxonomy
Xiaosaurus was named by Dong and Tang (1983).
It was considered a nomen dubium by Sereno (1991); it was considered a nomen dubium by Norman et al. (2004).
It was assigned to Hypsilophodontidae by Dong and Tang (1983) and Dong (1992); to Dinosauria by Knoll (1999); to Ornithischia by Barrett et al. (2005); and to Fabrosauridae by Peng (1992), Dong (1997), Peng et al. (2005) and Li et al. (2011).
It was considered a nomen dubium by Sereno (1991); it was considered a nomen dubium by Norman et al. (2004).
It was assigned to Hypsilophodontidae by Dong and Tang (1983) and Dong (1992); to Dinosauria by Knoll (1999); to Ornithischia by Barrett et al. (2005); and to Fabrosauridae by Peng (1992), Dong (1997), Peng et al. (2005) and Li et al. (2011).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Xiaosaurus Dong and Tang |
| 1992 | Xiaosaurus Dong p. 61 |
| 1992 | Xiaosaurus Peng p. 52 |
| 1997 | Xiaosaurus Dong p. 793 |
| 1999 | Xiaosaurus Knoll p. 65 |
| 2005 | Xiaosaurus Barrett et al. p. 831 |
| 2005 | Xiaosaurus Peng et al. |
| 2011 | Xiaosaurus Li et al. p. 23 |
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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.
G. †Xiaosaurus Dong and Tang 1983 [small lizard]
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†Xiaosaurus dashanpensis Dong and Tang 1983
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. M. Barrett et al. 2005 | A small ornithischian dinosaur that possesses a single autapomorphy: possession of a proximally straight humerus that lacks the medial curvature seen in all other basal ornithischians. | |
| G. Peng et al. 2005 | As for type species Xiaosaurus dashanpensis Dong et Tang, 1983. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Marsh 1875 | |||||
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bajocian - Oxfordian | China (Sichuan) | Xiaosaurus dashanpensis (24883) |