Jura-trias

1 definition found

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

  Jura-trias \Ju`ra-tri"as\, n. (Geol.)
     A term applied to many American Mesozoic strata, in which the
     characteristics of the Jurassic and Triassic periods appear
     to be blended. -- {Ju`ra-tri*as"sic}, a.
     [1913 Webster]