Name: Chinshakiangosaurus ‭(‬Chinshakian lizard‭)‬.
Phonetic: Chin-shah-ke-ang-o-sore-us.
Named By: Ye vide Dong‭ ‬-‭ ‬1992.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Sauropoda.
Species: C.‭ ‬chunghoensis‭ (‬type‭)‬.
Diet: Herbivore.
Size: Estimated to be about‭ ‬12‭ ‬to‭ ‬13‭ ‬meters long.
Known locations: China‭ ‬-‭ ‬Fengjiahe Formation.
Time period: Hettangian of the Jurassic.
Fossil representation: Dentary‭ (‬lower jaw bone‭) ‬and partial post cranial remains.

       Despite being a little known genus of sauropod dinosaur,‭ ‬Chinshakiangosaurus is one of the most important.‭ ‬This is because when it was described,‭ ‬Chinshakiangosaurus was the only example of an early sauropod dinosaur where the sides of the head can be reconstructed.‭ ‬This has revealed that although Chinshakiangosaurus was a sauropod,‭ ‬the lower jaw tapered to be narrower towards the front of the mouth,‭ ‬a trait that is commonly seen in sauropodomorph dinosaurs,‭ ‬but different from later and more advanced sauropods.‭ ‬There is also a diagonal ridge on the dentary that is seen as the attachment point for a cheek,‭ ‬something that would have prevented food from falling out of the sides of the mouth while a Chinshakiangosaurus was feeding.‭ ‬Chinshakiangosaurus has helped to cement the theory that when early sauropodomorph dinosaurs were small,‭ ‬they would have been selective browsers,‭ ‬While later sauropods with their deep lower jaws would have been non-selective browsers and all about grabbing big mouthfuls of food to fuel their larger bodies.

Further reading
-‭ ‬A re-evaluation of Chinshakiangosaurus chunghoensis Ye vide Dong‭ ‬1992‭ (‬Dinosauria,‭ ‬Sauropodomorpha‭)‬:‭ ‬implications for cranial evolution in basal sauropod dinosaurs‭"‬.‭ ‬Geological Magazine‭ ‬144‭ (‬2‭)‬:‭ ‬247‭–‬262.‭ ‬-‭ ‬P.‭ ‬Upchurch,‭ ‬P.‭ ‬M.‭ ‬barret,‭ ‬Z.‭ ‬Xijin‭ & ‬X.‭ ‬Xing‭ ‬-‭ ‬2007.


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