Genus
Valid Extinct

Nemegtosaurus

Nowinski 1971
Etymology reptile from the Nemegt

Nemegtosaurus was a sauropod dinosaur from the Late Cretaceous Period of what is now Mongolia. Measuring an estimated 12–13 m (39–43 ft) long and weighing 20 t (44,000 lb), it was named after the Nemegt Basin in the Gobi Desert, where the remains — a single skull — were found. The skull resembles diplodocoids in being long and low, with pencil-shaped teeth. However, recent work has shown that Nemegtosaurus is in fact a titanosaur, closely related to animals such as Saltasaurus, Alamosaurus, and Rapetosaurus.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
3
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Nemegtosaurus
click to enlarge
Cast of the skull of Nemegtosaurus, on a mounted Opisthocoelicaudia skeleton, Museum of Evolution of Polish Academy of Sciences, Warsaw © Adrian Grycuk · CC BY-SA 3.0 pl · Wikimedia
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Classification
Dinosauria Unranked clade
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Saurischia Unranked clade
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Sauropodomorpha Unranked clade
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Massopoda Unranked clade
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Sauropodiformes Unranked clade
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Sauropoda Unranked clade
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Gravisauria Unranked clade
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Eusauropoda Unranked clade
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Neosauropoda Unranked clade
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Macronaria Unranked clade
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Titanosauriformes Unranked clade
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Somphospondyli Unranked clade
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Titanosauria Unranked clade
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Lithostrotia Unranked clade
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Nemegtosauridae Family
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Nemegtosaurus Genus
Measurements
Length
13 m ⓘ
Fossil sites 3 geolocated sites
Distribution
Top countries
🇯🇵 Japan
1
🇨🇳 China
1
🇲🇳 Mongolia
1
Geological formations
Tamayama
1
Subashi
1
Nemegt
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
1
Campanian (83.6–72.2 Ma)
1
Coniacian (89.8–85.7 Ma)
1
Species (2)
Nemegtosaurus mongoliensis 72 Ma
Nemegtosaurus pachi nomen dubium, species not entered Nemegtosaurus 84 Ma
Synonyms (1)
Nemegtosaurus pachi nomen dubium, species not entered Nemegtosaurus
Images 2
Bibliography
Original description
A. Nowinski. 1971. <i>Nemegtosaurus mongoliensis</i> n. gen., n. sp. (Sauropoda) from the uppermost Cretaceous of Mongolia. Palaeontologia Polonica 25:57-81
Bibliography (3)
M. Tanimoto and C. Suzuki. 1997. [Sauropod teeth (cf. Nemegtosaurus sp.) from the Tamayama Formation (Upper Cretaceous, Santonian), Futaba Group of Iwaki City, Fukushima Prefecture, northeast Japan]. Research Reports IWAKI Natural History
Z. Dong. 1977. On the dinosaurian remains from Turpan, Xinjiang. Vertebrata PalAsiatica 15(1):59-66
A. Nowinski. 1971. <i>Nemegtosaurus mongoliensis</i> n. gen., n. sp. (Sauropoda) from the uppermost Cretaceous of Mongolia. Palaeontologia Polonica 25:57-81