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Jaxartosaurus aralensis

Reptilia - Hadrosauridae

Taxonomy
Jaxartosaurus aralensis was named by Riabinin (1938). Its type specimen is PEN AN SSR I/5009, a partial skull, and it is a 3D body fossil. Its type locality is Kyrkkuduk I (Dabrazhin), which is in a Coniacian/Santonian terrestrial conglomerate in the Dabrazhin Formation of Tajikistan. It is the type species of Jaxartosaurus.

It was considered a nomen dubium by Norman and Sues (2000).

Synonymy list
YearName and author
1938Jaxartosaurus aralensis Riabinin p. 126
1939Jaxartosaurus aralensis Riabinin p. 8
1954Jaxartosaurus aralensis Yuryev p. 190
1958Jaxartosaurus aralensis Young p. 112
1964Jaxartosaurus aralensis Kuhn p. 21
1964Yaxartosaurus aralensis Tatarinov p. 567
1967Jaxartosaurus aralensis Charig p. 716
1973Yaxartosaurus aralensis Wu p. 218
1975Jaxartosaurus aralensis Taquet p. 508
1977Jaxartosaurus aralensis Rozhdestvensky p. 113
1981Jaxartosaurus aralensis Maryanska and Osmólska p. 8
1983Jaxartosaurus aralensis Weishampel and Weishampel p. 44
1990Jaxartosaurus aralensis Weishampel and Horner p. 558
1993Jaxartosaurus aralensis Buffetaut and Tong-Buffetaut p. 1259
1997Jaxartosaurus aralensis Ryan p. 443
2003Jaxartosaurus aralensis Godefroit et al. p. 148
2004Jaxartosaurus aralensis Horner et al. p. 441
2006Jaxartosaurus aralensis Lund and Gates p. 272
2007Jaxartosaurus aralensis Evans and Reisz p. 387 fig. 9
2007Jaxartosaurus aralensis Gates et al. p. 922
2008Jaxartosaurus aralensis Dong p. 6
2008Jaxartosaurus aralensis Godefroit et al. p. 68
2010Jaxartosaurus aralensis Prieto-Marquez and Salinas p. 835 fig. 20
2010Jaxartosaurus aralensis Prieto-Márquez p. 5 fig. 2
2010Jaxartosaurus aralensis Prieto-Márquez and Norell p. 12
2010Jaxartosaurus aralensis Prieto-Márquez and Wagner p. 1243
2012Jaxartosaurus aralensis Averianov et al. p. 140
2012Jaxartosaurus aralensis Godefroit et al. p. 532
2012Jaxartosaurus aralensis Ramírez-Velasco et al. p. 392
2013Jaxartosaurus aralensis Bell and Brink p. 266
2013Jaxartosaurus aralensis Cruzado-Caballero et al.
2014Jaxartosaurus aralensis Bolotsky et al. p. 327
2016Jaxartosaurus aralensis Prieto-Márquez et al. p. 6
2017Jaxartosaurus aralensis Cruzado-Caballero and Powell p. 12 fig. 13
2019Jaxartosaurus aralensis Takasaki et al. p. 5

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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
—Diapsida()
—Archosauromorpha(Huene 1946)
RankNameAuthor
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Ornithopoda()
—Clypeodonta
—Iguanodontia()
—Dryomorpha
—Styracosterna
—Hadrosauriformes
—Hadrosauroidea()
familyHadrosauridae
subfamilyLambeosaurinae
genusJaxartosaurus
speciesaralensis

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.

†Jaxartosaurus aralensis Riabinin 1938
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Diagnosis
No diagnoses are available
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 Coniacian to the top of the Santonian or 89.80000 to 83.60000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Coniacian - Santonian89.8 - 83.6Tajikistan (Asht) Jaxartosaurus sp. (type locality: 53132)