A new ankylosaurian dinosaur (Ornithischia: Ankylosauria) from the Upper Cretaceous of Shanxi Province, People's Republic of China

1998 ◽  
Vol 18 (2) ◽  
pp. 376-384 ◽  
Author(s):  
Paul M. Barrett ◽  
You Hailu ◽  
Paul Upchurch ◽  
Alex C. Burton
Keyword(s):  
Upper Cretaceous ◽  
Shanxi Province ◽  
People’S Republic Of China ◽  
People's Republic Of China ◽  
Republic Of China

A juvenile specimen of Saurornithoides mongoliensis from the Upper Cretaceous of northern China

1993 ◽  
Vol 30 (10) ◽  
pp. 2224-2230 ◽  
Author(s):  
Philip J. Currie ◽  
Jiang-Hua Peng
Keyword(s):  
Parental Care ◽  
Hind Limb ◽  
Upper Cretaceous ◽  
Northern China ◽  
People’S Republic Of China ◽  
People's Republic Of China ◽  
Republic Of China ◽  
Immature Individual ◽  
Juvenile Specimen

A hind limb of Saurornithoides mongoliensis from the Djadokhta Formation equivalent beds (Upper Cretaceous) of Bayan Mandahu (People's Republic of China) provides more information on the anatomy of the leg of this species than any other known specimen. Although it shares apomorphies of all troodontid theropods, the metatarsus is relatively longer and more derived than that of Troodon itself. The specimen is of an immature individual, less than half the size of the holotype. The degree of ossification suggests that troodontids were well developed at birth and that parental care was probably unnecessary.

On the discovery of an oviraptorid skeleton on a nest of eggs at Bayan Mandahu, Inner Mongolia, People's Republic of China

1996 ◽  
Vol 33 (4) ◽  
pp. 631-636 ◽  
Author(s):  
Zhi-Ming Dong ◽  
Philip J. Currie
Keyword(s):  
Inner Mongolia ◽  
Upper Cretaceous ◽  
People’S Republic Of China ◽  
People's Republic Of China ◽  
Republic Of China ◽  
Partial Skeleton

A partial skeleton of Oviraptor (which means egg thief), collected at Bayan Mandahu (Inner Mongolia, People's Republic of China) in 1990 was lying on top of a nest of eggs. Of the six known skeletons of this genus from Upper Cretaceous Djadokhtan sediments, this is the second occurrence in which the theropods were interacting with the eggs when they were buried by sand and dust during sandstorms. Two explanations for the association of Oviraptor with eggs are that the theropod may have been eating the eggs, or it may have been incubating and protecting them. Evidence presented suggests that the latter hypothesis is more likely. It is also conceivable that the female oviraptorid was in the process of laying eggs when she died.

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