Name: Ruyangosaurus ‭(‬Ruyang lizard‭)‬.
Phonetic: ‭R‬roo-yang-go-sore-us‭)‬.
Named By: Lu J,‭ ‬Xu L,‭ ‬Jia S,‭ ‬Zhang X,‭ ‬Zhang J,‭ ‬Yang L,‭ ‬You H,‭ ‬Ji Q‭ ‬-‭ ‬2009.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Sauropodomorpha,‭ ‬Sauropoda.
Species: R.‭ ‬giganteus‭ (‬type‭)‬.
Diet: Herbivore.
Size: Uncertain due to incomplete remains,‭ ‬but roughly estimated to be around‭ ‬30‭ ‬meters long.
Known locations: China,‭ ‬Henan Province‭ ‬-‭ ‬Manchuan Formation.
Time period: Cenomanian to Turonian of the Cretaceous.
Fossil representation: Partial remains including a tibia,‭ ‬vertebrae and ribs.

       Not many fossilised bones of this dinosaur are known,‭ ‬but those that are‭ ‬are‭ ‬simply huge.‭ ‬Comparing these bones to the more complete remains of other genera has resulted in very rough estimates of around thirty meters long,‭ ‬raising the probability that Ruyangosaurus was one of the largest animals to ever walk the Earth.‭ ‬The only way that a more accurate figure for Ruyangosaurus could ever be established is if a single the missing parts are found,‭ ‬and unfortunately this is not likely.‭ ‬The bigger an animal is,‭ ‬the longer it takes for it to become buried so that the remains are protected from scavengers and‭ ‬the elements so that the bones‭ ‬can fossilise.‭ ‬This is why sauropod dinosaurs are usually found piecemeal,‭ ‬though several partial individuals of a genus can be just as good if not better than a single individual as this would enable the establishment of an average size for a species and not just one individual.
       It seems that Ruyangosaurus is not the only large sauropod from the early Cretaceous of China,‭ ‬with Huanghetitan and Daxiatitan both also hinted at being some of the largest known sauropods.

Further reading
-‭ ‬A new gigantic sauropod dinosaur from the Cretaceous of Ruyang,‭ ‬Henan,‭ ‬China,‭ ‬Lu J,‭ ‬Xu L,‭ ‬Jia S,‭ ‬Zhang X,‭ ‬Zhang J,‭ ‬Yang L,‭ ‬You H,‭ ‬Ji Q‭ ‬-‭ ‬2009.


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