of a cannon. it would have been useless however, as a weapon and most likely would have been used for other purposes.
most people refer to the apatosaurus as the brontosaurus. that’s because of a naming error that occurred early on in the discovery of these dinosaurs. the first one was named apatosaurus, but one that was found later was called brontosaurus. the public latched on to the name brontosaurus however, and it stuck. unfortunately, according to scientific convention the oldest name is the proper name to use. 