Name: Rocasaurus ‭(‬Roca lizard‭)‬.
Phonetic: Ro-ca-sore-us.
Named By: Leonardo Salgado and Claudia Azpilicueta‭ ‬-‭ ‬2000.‭
Classification:‭ ‬Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Sauropomorpha,‭ ‬Sauropoda.
Species: R.‭ ‬muniozi‭ (‬type‭)‬.
Diet: Herbivore.
Size: About‭ ‬8‭ ‬meters long,‭ ‬possibly larger.
Known locations: Argentina,‭ ‬Rio Negro Province‭ ‬-‭ ‬Allen Formation.
Time period: Campanian of the Cretaceous.
Fossil representation: Partial post cranial remains including vertebrae,‭ ‬pubis,‭ ‬ischium and left femur,‭ ‬possibly of‭ ‬a juvenile.

       At eight meters long Rocasaurus was actually quite small for a sauropod,‭ ‬though it still would have been one of the larger dinosaurs on the landscapes of late Cretaceous Argentina.‭ ‬However if the holotype is correctly interpreted as that of a juvenile,‭ ‬then adults of the genus would have certainly grown larger.
       Another sauropod from the Allen Formation is Saltasaurus,‭ ‬a genus that Rocasaurus may have come into contact with while pterosaurs like Aerotitan flew overhead.

Further reading
-‭ ‬Un nuevo saltasaurino‭ (‬Sauropoda,‭ ‬Titanosauridae‭) ‬de la provincia de Río Negro‭ (‬Formación Allen,‭ ‬Cretácico Superior‭)‬,‭ ‬Patagonia,‭ ‬Argentina‭ [‬A new saltasaurine‭ (‬Sauropoda,‭ ‬Titanosauridae‭) ‬from Río Negro province‭ (‬Allen Formation,‭ ‬Upper Cretaceous‭)‬,‭ ‬Patagonia,‭ ‬Argentina,‭ ‬Leonardo Salgado and Claudia Azpilicueta‭ ‬-‭ ‬2000.


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