apatosaurus

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noun apato·sau·rus \ə-ˌpa-tə-ˈsȯr-əs\
variants: or less commonly

apatosaur

Definition of apatosaurus

  1. :  any of a genus (Apatosaurus of the family Diplodocidae) of very large, herbivorous, sauropod dinosaurs that lived during the Late Jurassic period and reached a length of over 65 feet (20 meters) and a height of 12 feet (3.7 meters) and are thought to have attained a weight of up to 30 tons (27 metric tons) Apatosauruses were first identified as being of a separate genus (Brontosaurus) and continue to be commonly called brontosauruses or brontosaurs based on this earlier and now invalid classification.

Origin and Etymology of apatosaurus

New Latin, from Greek apatē + sauros lizard


APATOSAURUS Defined for Kids

apatosaurus

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noun apato·sau·rus \ə-ˌpa-tə-ˈsȯr-əs\

Definition of apatosaurus for Students


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