Question: SOS, plz, someone help me? some kids asked me the difference between a tyrannosaur and a tyrannosaurus. my English is just fairly good so i really don't know the answer. i've posted this question before but only got two unreliable answers. I've surfed the net and even consulted my dictionary, but still, no answer. Plz, anybody? I'd really appreciate it.\n\nthe ff: are some other dinosaur names that the kids mentioned to me:\na plesiosaur and a plesiosaurus\nan ichthyosaur and an ichthyosaurus\na pterodactyl and a pterodactylus\n\n?????

Answer: http://www.miketaylor.org.uk/dino/faq/s-class/endings/index.html
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