Genus
Valid Extinct

Jaxartosaurus

Riabinin 1937

Jaxartosaurus is a genus of hadrosaurid dinosaur similar to Corythosaurus which lived during the Late Cretaceous. Its fossils were found in Kazakhstan.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
2
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Jaxartosaurus
click to enlarge
Reconstructed skull of Jaxartosaurus aralensis Riabinin, 1937. Only a posterior portion of the skull, as well as a surangular is known, with the rest of the skull being based mostly upon File:Aralosaurus skull.png. Jaxartosaurus is currently classified as a basal lambeosaurine, more derived than Aralosaurini, but more primitive than Parasaurolophini and Lambeosaurini. It might be more derived than Tsintaosaurini (Godefroit et al., 2004). References: Riabinin, A.M. (1937). "A New Finding of Dinosaurs in the Trans-Baikal Region". Ezhegodn. Vserossijskogo Palaeont. Obstcg. 11: 142–144 Godefroit, P.; Bolotsky, Y.L.; Van Itterbeeck, J. (2004). "The lambeosaurine dinosaur Amurosaurus riabinini, from the Maastrichtian of Far Eastern Russia". Acta Palaeontologica Polonica 49(4): 585–618 © I. Reid · CC0 · Wikimedia
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Classification
Dinosauria Unranked clade
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Ornithischia Unranked clade
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Neornithischia Unranked clade
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Pyrodontia Unranked clade
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Cerapoda Unranked clade
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Ornithopoda Suborder
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Iguanodontia Infraorder
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Euiguanodontia Unranked clade
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Dryomorpha Unranked clade
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Ankylopollexia Unranked clade
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Styracosterna Unranked clade
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Hadrosauriformes Unranked clade
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Hadrosauroidea Unranked clade
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Hadrosauridae Family
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Lambeosaurinae Subfamily
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Jaxartosaurus Genus
Measurements
Length
9 m ⓘ
Fossil sites 2 geolocated sites
Distribution
Top countries
🇨🇳 China
1
🇰🇿 Kazakhstan
1
Geological formations
Ulungar
1
Dabrazhin
1
Temporal distribution
Campanian (83.6–72.2 Ma)
1
Coniacian (89.8–85.7 Ma)
1
Species (2)
Jaxartosaurus aralensis 90 Ma
Jaxartosaurus fuyunensis nomen dubium, species not entered Jaxartosaurus
Synonyms (1)
Jaxartosaurus fuyunensis nomen dubium, species not entered Jaxartosaurus
Images 1
Bibliography
Original description
A. N. Riabinin. 1937. O nakhodke shlemonosnykh form Dinosauria verkhnemelovykh otlozheniyakh yuzhnogo Kazakhstana [The discovery of crested forms of Upper Cretaceous dinosaurs in southern Kazakhstan]. Priroda 1937(9):91
Bibliography (2)
S. Z. Wu. 1973. [A fossil Jaxartosaurus is discovered in Xinjiang]. Vertebrata PalAsiatica 11(2):217-218
A. N. Riabinin. 1938. Some results of the studies of the Upper Cretaceous dinosaurian fauna from the vicinity of the station Sary-Agach, South Kazakhstan. Problems of Paleontology 4:125-135