Name a dinosaur

Leviathan. Yes, it existed!! Read The Bible in the book of Job, job described the T-Rex as "Leviathan". Cordially Bethany (pianoplayer) Scholastic Dinosaurs: A to Z, The Ultimate Dinosaur Encyclopedia, written by Don Lessem and illustrated by Jan Sovak has nearly every dinosaur (the ones discovered after the book was published aren't in it), and there isn't a leviathan. A real dinosaur is gasparinisaura, a basal Iguanodontia from the Late Cretaceous period that lived in Argentina. It ate plants and is one of the few dinosaurs who has a 'saura' in its name instead of 'saurus.'