jura-trias
Ju`ra-tri"as, n. (Geol.) Defn: 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.
Ju`ra-tri"as, n. (Geol.) Defn: 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.