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Re: new dinosaurs

According to Carr et al. 2005, Dryptosaurus is demarcated from 
Appalachiosaurus by the absence of a socket in the dorsal margin of the 
astragalus and the lack of the cranial process of the tibia. 

The citation in Rauhut et Xu 2005 for the "?Valanginian-Albian" Age of the 
Lianmugin Fm. is Shen and Mateer 1992. An outline of the Cretaceous system in 
northern Xinjiang, western China; pp.49-77 in Mateer and Chen (eds.), Aspects 
of Nonmarine Cretaceous Geology. China Ocean Press, Beijing.  

-Andrew McDonald