who executed it?
UNANSWERABLE
what is parasaurolophus? It is a genus of herbivorous ornithopod dinosaur. where was it discovered? Alberta (Canada), New Mexico and Utah (United States). were there any expedition that led to its discovery? Yes, a field party from the University of Toronto.
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Parasaurolophus [SEP] Discovery and naming
Meaning "near crested lizard", the name "Parasaurolophus" is derived from the Greek "para"/παρα "beside" or "near", "saurus"/σαυρος "lizard" and "lophos"/λοφος "crest". It is based on ROM 768, a skull and partial skeleton missing most of the tail and the hind legs below the knees, which was found by a field party from the University of Toronto in 1920 near Sand Creek along the Red Deer River in Alberta, Canada. These rocks are now known as the Campanian-age Upper Cretaceous Dinosaur Park Formation. William Parks named the specimen "P. walkeri" in honor of Sir Byron Edmund Walker, Chairman of the Board of Trustees of the Royal Ontario Museum.