Title
Anatomy and relationships of Gilmoreosaurus mongoliensis (Dinosauria, Hadrosauroidea) from the late Cretaceous of Central Asia
Title Variants
Alternative:
Gilmoreosaurus mongoliensis
Related Titles
Series:
American Museum novitates, no. 3694
By
Prieto-Márquez, Albert, 1974-
Norell, Mark A.
Olsen, George, 1874-1939
Central Asiatic Expeditions 1921-1930
Type
Book
Material
Published material
Publication info
[New York], American Museum of Natural History, c2010
Notes
Caption title.
"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.
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.
Subjects
Anatomy
,
China
,
Cretaceous
,
Dinosaurs
,
Gilmoreosaurus mongoliensis
,
Hadrosauridae
,
Inner Mongolia
,
Iren Dabasu Formation
,
Iren Dabasu Formation (China)
,
Paleontology
,
Phylogeny
,
Reptiles, Fossil
Call Number
QL1 .A436 no.3694 2010
Language
English
Identifiers
OCLC:
657648756
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