Sauropods were gigantic herbivorous dinosaurs that lived during the Mesozoic era. These reptiles were known for their long necks, elongated bodies, and sturdy legs. While the term sauropod is the most widely recognized name given to these creatures, there are several synonyms that paleontologists use when referring to them. Some of these synonyms include brachiosaur, diplodocid, apatosaur, and titanosaurs. Each of these names describes a specific group of sauropods that have distinct anatomical features. The use of synonyms helps researchers better understand the diversity and evolution of sauropods and the ecosystems they inhabited.