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Anatomy and relationships of Gilmoreosaurus mongoliensis (Dinosauria, Hadrosauroidea) from the late Cretaceous of Central Asia. (American Museum novitates, no. 3694)

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dc.contributor.author Prieto-Márquez, Albert, 1974-
dc.contributor.author Norell, Mark.
dc.date.accessioned 2010-08-24T15:50:09Z
dc.date.available 2010-08-24T15:50:09Z
dc.date.issued 2010
dc.identifier.uri http://hdl.handle.net/2246/6080
dc.description 49 p. : ill. ; 26 cm. "August 23, 2010." "The first fossil remains of Gilmoreosaurus mongoliensis were collected in 1923 by George Olsen during the Central Asiatic Expeditions of the American Museum of Natural History ... from two quarries ... in the Upper Cretaceous Iren Dabasu Formation, Inner Mongolia, northern China"--P. 2. en
dc.description.abstract The osteology of the hadrosauroid dinosaur Gilmoreosaurus mongoliensis is redescribed in detail based on the disarticulated cranial and postcranial elements of at least four individuals. These together constitute the lectotype and hypodigm of this species. The diagnosis is emended to include two autapomorphies (paddle-shaped postacetabular process that is less than 70% of the length of the iliac central plate and manual phalanx III-1 with greatly asymmetrical distal surface) and the unique combination of two iliac characters (presence of ischial tuberosity and supraacetabular process with apex located posterodorsal to ischial peduncle). The distinction of G. mongoliensis from B. johnsoni is confirmed on the basis of characters of the maxilla, dentition, ilium, ischium, and pubis. Maximum parsimony analysis places G. mongoliensis as a closely related outgroup to the Hadrosauridae, the sister taxon to the clade composed of all hadrosauroids closer to Telmatosaurus transsylvanicus than to Bactrosaurus johnsoni. en
dc.format.extent 9950894 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher American Museum of Natural History. en
dc.relation.ispartofseries American Museum novitates, no. 3694. en
dc.subject Gilmoreosaurus mongoliensis. en
dc.subject Dinosaurs. en
dc.subject Inner Mongolia (China) en
dc.subject China. en
dc.subject Iren Dabasu Formation (China) en
dc.title Anatomy and relationships of Gilmoreosaurus mongoliensis (Dinosauria, Hadrosauroidea) from the late Cretaceous of Central Asia. (American Museum novitates, no. 3694) en
dc.title.alternative Gilmoreosaurus mongoliensis. en


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  • American Museum Novitates
    Novitates (Latin for "new acquaintances"), published continuously and numbered consecutively since 1921, are short papers that contain descriptions of new forms and reports in zoology, paleontology, and geology. New numbers are published at irregular intervals.

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