Eosaurus

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Eosaurus \E`o*sau"rus\, n. [NL., fr. Gr. 'hw`s dawn + say^ros
     lizard.] (Paleon.)
     An extinct marine reptile from the coal measures of Nova
     Scotia; -- so named because supposed to be of the earliest
     known reptiles.
     [1913 Webster]