PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Huayangosaurus

Reptilia

Taxonomy

Huayangosaurus was named by Dong et al. (1982). It is the type genus of Huayangosaurinae, Huayangosauridae.

It was assigned to Stegosauria by Buchholz (2002); to Huayangosaurinae by Dong et al. (1982), Zhou (1983), Zhou (1986), Dong (1990), Dong (1992), Peng et al. (2005); to Stegosauria by Sereno (1986), Sereno (1997), Sereno (1998), Sereno (1999), Maidment et al. (2006), Mateus et al. (2009); to Stegosauridae by Carroll (1988), Li et al. (2011); and to Huayangosauridae by Galton (1990), Galton (1990), Olshevsky and Ford (1993), Dong (1997), Carpenter et al. (2001), Blows (2001), Galton and Upchurch (2004), Maidment et al. (2008), Ulansky (2014), Tumanova and Alifanov (2018).

Species

H. taibaii

Synonymy list

Year	Name and author
1982	Huayangosaurus Dong et al.
1983	Huayangosaurus Zhou p. 15
1986	Huayangosaurus Sereno
1986	Huayangosaurus Zhou p. 35
1988	Huayangosaurus Carroll
1990	Huayangosaurus Dong p. 259
1990	Huayangosaurus Galton
1992	Huayangosaurus Dong p. 166
1993	Huayangosaurus Olshevsky and Ford
1997	Huayangosaurus Dong p. 793
1997	Huayangosaurus Sereno p. 440 fig. 2
1998	Huayangosaurus Sereno p. 67 fig. 5
1999	Huayangosaurus Sereno p. 2138 fig. 2
2001	Huayangosaurus Blows p. 137
2001	Huayangosaurus Carpenter et al. p. 73 fig. 3.14
2002	Huayangosaurus Buchholz p. 18
2004	Huayangosaurus Galton and Upchurch p. 344
2005	Huayangosaurus Peng et al.
2006	Huayangosaurus Maidment et al. p. 944
2008	Huayangosaurus Maidment et al. p. 390 fig. 11
2009	Huayangosaurus Mateus et al.
2011	Huayangosaurus Li et al. p. 23
2014	Huayangosaurus Ulansky p. 4
2018	Huayangosaurus Tumanova and Alifanov p. 1771

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia

Rank	Name	Author
subclass	Eureptilia	()
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Ornithischia	()
—	Genasauria
—	Thyreophora	()
—	Stegosauria	()
genus	Huayangosaurus

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. †Huayangosaurus Dong et al. 1982

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†Huayangosaurus taibaii Dong et al. 1982

Diagnosis

Reference	Diagnosis
G. Peng et al. 2005	As for type species Huayangosaurus taibaii Dong et al., 1982.
S. C. R. Maidment et al. 2008	As for type and only known species.