PBDB Taxon

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

Hypselospinus

Reptilia

Taxonomy

Hypselospinus was named by Norman (2010). Its type is Iguanodon fittoni.

It was assigned to Styracosterna by Norman (2010) and Norman (2014); to Neoiguanodontia by Norman (2014); and to Hadrosauriformes by Verdú et al. (2021).

Species

H. fittoni (syn. Huxleysaurus hollingtoniensis, Darwinsaurus evolutionis)

Synonyms

Wadhurstia was named by Carpenter and Ishida (2010).

It was synonymized objectively with Hypselospinus by Norman (2013), Pereda Suberbiola and Ruiz-Omeñaca (2013) and Llandres Serrano et al. (2013).

It was assigned to Iguanodontia by Carpenter and Ishida (2010).
Darwinsaurus was named by Paul (2012).

It was synonymized subjectively with Hypselospinus by Norman (2013).

Synonymy list

Year	Name and author
2010	Wadhurstia Carpenter and Ishida p. 156
2010	Hypselospinus Norman p. 55
2012	Darwinsaurus Paul
2014	Hypselospinus Norman
2021	Hypselospinus Verdú et al. p. 10 fig. 9

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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	()
—	Romeriida

Rank	Name	Author
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Ornithischia	()
—	Genasauria
—	Cerapoda
—	Ornithopoda	()
—	Clypeodonta
—	Iguanodontia	()
—	Dryomorpha
—	Ankylopollexia
—	Neoiguanodontia
genus	Hypselospinus

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. †Hypselospinus Norman 2010

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†Hypselospinus fittoni Lydekker 1889

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Invalid names: Darwinsaurus evolutionis Paul 2012 [synonym], Huxleysaurus hollingtoniensis Lydekker 1889 [synonym]

Invalid names: Darwinsaurus Paul 2012 [synonym], Wadhurstia Carpenter and Ishida 2010 [objective synonym]

Diagnosis

Reference	Diagnosis
D. B. Norman 2010	As for type species (below).

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:

herbivoresubo

Reproduction:

oviparouso

Dispersal:

direct/internalo

Dispersal 2:

mobileo

Created:

2009-01-03 20:40:05

Modified:

2009-01-03 22:40:05

Source: subo = suborder, o = order

References: Benton 1983, Marsh 1875

Age range: base of the Late/Upper Berriasian to the top of the Late/Upper Valanginian or 145.00000 to 136.40000 Ma

Collections (8 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Berriasian	145.0 - 140.2	United Kingdom (England)	Camptosaurus hoggii (52310)
Early/Lower Valanginian	140.2 - 136.4	United Kingdom (England)	Iguanodon fittoni (58094) Iguanodon hollingtonensis (231104) Iguanodon hollingtoniensis, Iguanodon sp. (52649)
Late/Upper Valanginian	140.2 - 136.4	United Kingdom (England)	H. fittoni (230812) Iguanodon fittoni (52668) Iguanodon sp. (96621 96622)