where was amargasaurus discovered?
In sedimentary rocks of the La Amarga Formation
Amargasaurus
"Amargasaurus" was discovered in sedimentary rocks of the La Amarga Formation, which dates back to the Barremian and late Aptian stages of the Early Cretaceous. 
what is amargasaurus? A genus of sauropod dinosaur when was it discovered? 1984 mention a few of its physical appearance? It has a long tail and neck, a small head, and a barrel-shaped trunk supported by four column-like legs. who discovered amargasaurus? Guillermo Rougier where was he born? UNANSWERABLE was there anyone else besides rougier who contributed to the discovery of the dinosaur? The expedition led by Argentine paleontologist José Bonaparte supported by the National Geographic Society what does the society do? They promote environmental and historical conservation, and the study of world culture and history when was it established? 1888 who was involved in its establishment? An elite group of academics and wealthy patrons interested in travel and exploration. do they have any publications? Yes, National Geographic Adventure", "National Geographic Research", atlases, books, and maps
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Amargasaurus [SEP] Introduction
An alternate hypothesis, now less favored, postulates that they could have formed a scaffold supporting a skin sail. They might have been used for display, combat, or defense. "Amargasaurus" was discovered in sedimentary rocks of the La Amarga Formation, which dates back to the Barremian and late Aptian stages of the Early Cretaceous. A herbivore, it shared its environment with at least three other sauropod genera, which might have exploited different food sources in order to reduce competition. "Amargasaurus" probably fed at mid-height, as shown by the orientation of its inner ear and the articulation of its neck vertebrae, which suggest a habitual position of the snout above the ground and a maximum height of .