PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Gigantspinosaurus

Reptilia - Stegosauridae

Taxonomy

Gigantspinosaurus was named by Ouyang (1992).

It was assigned to Stegosauria by Maidment and Wei (2006), Maidment et al. (2008), Mateus et al. (2009); to Stegosauridae by Li et al. (2011), Ulansky (2014), Ulansky (2015); and to Huayangosaurinae by Peng et al. (2005), Xing et al. (2008), Hao et al. (2018).

Species

G. sichuanensis

Synonymy list

Year	Name and author
1992	Gigantspinosaurus Ouyang
2005	Gigantspinosaurus Peng et al.
2006	Gigantspinosaurus Maidment and Wei p. 628
2008	Gigantspinosaurus Maidment et al. p. 390 fig. 11
2008	Gigantspinosaurus Xing et al. p. 1050
2009	Gigantspinosaurus Mateus et al.
2011	Gigantospinosaurus Li et al. p. 25
2014	Gigantspinosaurus Ulansky p. 5
2015	Gigantspinosaurus Ulansky p. 5–6
2018	Gigantspinosaurus Hao et al. p. 432

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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
subclass	Eureptilia	()

Rank	Name	Author
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Ornithischia	()
—	Genasauria
—	Thyreophora	()
—	Stegosauria	()
family	Stegosauridae
subfamily	Huayangosaurinae
genus	Gigantspinosaurus	Ouyang 1992

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. †Gigantspinosaurus Ouyang 1992

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†Gigantspinosaurus sichuanensis Ouyang 1992

Diagnosis

Reference	Diagnosis
G. Peng et al. 2005	As for type species Gigantspinosaurus sichuanensis Ouyang, 1992.
S. C. R. Maidment et al. 2008	As for type and only known species.
R. E. Ulansky 2015	As for type species.

Measurements

No measurements are available

Composition:

hydroxyapatiteo

Entire body:

yeso

Adult length:

10 to < 100o

Adult width:

1.0 to < 10o

Adult height:

1.0 to < 10o

Architecture:

compact or denseo

Ontogeny:

accretion, modification of partso

Grouping:

gregariouso

Environment:

terrestrialo

Locomotion:

actively mobileo

Life habit:

ground dwellingo

Diet:

herbivoreo

Reproduction:

oviparouso

Dispersal:

direct/internalo

Dispersal 2:

mobileo

Created:

2004-12-14 12:50:52

Modified:

2004-12-14 14:50:52

Source: o = order

References: Kiessling 2004, Marsh 1875

Age range: base of the Bathonian to the top of the Callovian or 168.20000 to 161.50000 Ma

Collections: one only

Time interval	Ma	Country or state	Original ID and collection number
Bathonian - Callovian	168.2 - 161.5	China (Sichuan)	Stegosauria indet. (67236)