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apatosaurus

/ ə-păt′ə-sôr′əs /

  1. A very large sauropod dinosaur of the genus Apatosaurus (or Brontosaurus ) of the late Jurassic Period. Apatosaurs had a long neck and tail and a relatively small head.
  2. See Note at brontosaurus

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Example Sentences

This was about thirty feet long, and is known as Apatosaurus grandis.

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