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Hippodraco scutodens

Reptilia

Taxonomy
Hippodraco scutodens was named by McDonald et al. (2010). Its type specimen is UMNH VP 20208, a partial skeleton, and it is a 3D body fossil. Its type locality is Andrew's Site (UMNH VP Loc. 1207), which is in a Valanginian channel sandstone in the Cedar Mountain Formation of Utah.

Synonymy list
YearName and author
2010Hippodraco scutodens McDonald et al. pp. 14-15
2011Hippodraco scutodens Prieto-Márquez p. 63
2013Hippodraco scutodens Kirkland p. 3
2013Hippodraco scutodens Zheng et al.
2015Hippodraco scutodens Milàn et al. p. 522
2015Hippodraco scutodens Weems and Bachman p. 214
2016Hippodraco scutodens Fuentes Vidarte et al. p. 436
2016Hippodraco scutidens Kirkland et al. p. 31
2019Hippodraco scutodens Bell et al. p. 4

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
RankNameAuthor
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Ornithopoda()
—Clypeodonta
—Iguanodontia()
—Dryomorpha
—Styracosterna
genusHippodraco
speciesscutodens

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.

†Hippodraco scutodens McDonald et al. 2010
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Diagnosis
ReferenceDiagnosis
A. T. McDonald et al. 2010Basal styracosternan diagnosed by a single autapomorphy: dentary tooth row strongly offset medially by a rounded lateral shelf that extends along the dorsolateral margin of the dentary from the first alveolus to the base of the coronoid process and slopes ventromedially to contact the labial margin of the tooth row. Also distinguished from all other iguanodontians except Theiophytalia kerri by the following combination of characters: finely striated flange that extends from the caudoventral margin of the jugal, projecting caudal to the jugal-quadratojugal contact; and lack of a gap (paraquadrate foramen) between quadratojugal and quadrate.
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: Valanginian or 139.80000 to 132.90000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Valanginian139.8 - 132.9USA (Utah) Hippodraco scutodens (type locality: 105613)