Mastodonsaurus

1 definition found

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

  Mastodonsaurus \Mas`to*don*sau"rus\, n. [NL., fr. E. Mastodon +
     Gr. say^ros a lizard.] (Paleon.)
     A large extinct genus of labyrinthodonts, found in the
     European Triassic rocks.
     [1913 Webster]