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Haya griva

Osteichthyes - Thescelosauridae

Taxonomy
Haya griva was named by Makovicky et al. (2011). Its type specimen is IGM 100/2017, a partial skeleton (skull and anterior cervical vertebrae), and it is a 3D body fossil. Its type locality is Khugenetjavkhlant, which is in a Santonian/Campanian alluvial fan sandstone in the Javkhlant Formation of Mongolia. It is the type species of Haya.

Synonymy list
YearName and author
2011Haya griva Makovicky et al. p. 626 figs. 1-6
2012Haya griva Han et al. p. 1370
2012Haya griva Zheng et al. p. 208
2013Haya griva Brown et al. p. 504
2018Haya griva Bell et al. p. 17
2018Haya griva Herne et al. p. 42
2019Haya griva Andrzejewski et al. p. 8
2019Haya griva Párraga and Prieto-Márquez p. 251
2020Haya griva Dieudonné et al.
2020Haya griva Dieudonné et al. p. 411
2021Haya griva Barta and Norell

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Neornithischia()
familyThescelosauridae
genusHaya
speciesgriva

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.

†Haya griva Makovicky et al. 2011
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Diagnosis
ReferenceDiagnosis
P. J. Makovicky et al. 2011Small basal ornithopod with five ho- modont, bulbous, unserrated premaxillary teeth; premaxilla without rugose ramphothecal pad as in Hypsilophodon and Thescelosaurus; triangular accessory maxillary fenestra present as in Hypsilophodon; jugal with bifid caudal ramus as in Je- holosaurus; quadratojugal foramen present; midline depression along internasal suture; predentary with bifid ventral ramus. Al- though some of these traits may ultimately optimize as autapo- morphies of Haya griva, the unstable nature of neornithischian phylogeny and complex distribution of these traits does not allow for such inferences at this time.
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: Marsh 1875, Kiessling 2004

Age range: base of the Late/Upper Campanian to the top of the Campanian or 83.60000 to 72.20000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Santonian - Campanian85.7 - 72.2Mongolia (Dornogov) Hypsilophodontidae indet. (type locality: 80183)
Late/Upper Campanian83.6 - 72.2Mongolia (Omnogov Aimak) Haya griva (68517)