Quaesitosaurus

Quaesitosaurus; Temporal range: Late Cretaceous, 75–73 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
	Diagram showing known elements of the holotype skull
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Dinosauria
Clade:	Saurischia
Clade:	†Sauropodomorpha
Clade:	†Sauropoda
Clade:	†Macronaria
Clade:	†Titanosauria
Clade:	†Lithostrotia
Family:	†Nemegtosauridae
Genus:	†Quaesitosaurus; Kurzanov & Bannikov, 1983
Species:	†Q. orientalis
Binomial name
	†Quaesitosaurus orientalis; Kurzanov & Bannikov, 1983

Restoration with hypothetical body

Quaesitosaurus (meaning "extraordinary lizard") is a genus of nemegtosaurid sauropod containing only the type species, Q. orientalis, described by Kurzanov and Bannikov in 1983.^[1] It lived from 75 to 73 million years ago during the Late Cretaceous (Santonian to Maastrichtian ages). Its fossils, consisting solely of a partial skull designated as the holotype PIN 3906/2, were found in the Barun Goyot Formation near , Mongolia.^[1] With long, low and horse-like with frontally located peg-teeth, the skull of Quaesitosaurus is similar enough to the skull of Diplodocus and its kin to have prompted informed speculation that the missing body was formed like those of diplodocids.^[2]

It is possible that Nemegtosaurus, also known from only skull material, is a very close relative of Quaesitosaurus.^[2]^[3]

References[]

^ ^a ^b Kurzanov, S. M.; Bannikov, A. F. (1983). "A new sauropod from the Upper Cretaceous of Mongolia". Paleontological Journal. 2: 90−96.
^ ^a ^b Hunt, A.P., Meyer, C.A., Lockley, M.G., and Lucas, S.G. (1994) "Archaeology, toothmarks and sauropod dinosaur taphonomy". Gaia: Revista de Geociencias, Museu Nacional de Historia Natural, Lisbon, Portugal, 10: 225–232.
^ Wilson, J. A. (2005). "Redescription of the mongolian sauropod nemegtosaurus mongoliensis nowinski (dinosauria: Saurischia) and comments on late cretaceous sauropod diversity". Journal of Systematic Palaeontology. 3 (3): 283−318. doi:10.1017/S1477201905001628.

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[Kurzanov1983-1] Kurzanov, S. M.; Bannikov, A. F. (1983). "A new sauropod from the Upper Cretaceous of Mongolia". Paleontological Journal. 2: 90−96.

[Hunt1994-2] Hunt, A.P., Meyer, C.A., Lockley, M.G., and Lucas, S.G. (1994) "Archaeology, toothmarks and sauropod dinosaur taphonomy". Gaia: Revista de Geociencias, Museu Nacional de Historia Natural, Lisbon, Portugal, 10: 225–232.

[3] Wilson, J. A. (2005). "Redescription of the mongolian sauropod nemegtosaurus mongoliensis nowinski (dinosauria: Saurischia) and comments on late cretaceous sauropod diversity". Journal of Systematic Palaeontology. 3 (3): 283−318. doi:10.1017/S1477201905001628.

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