Category:Jurassic

Ju*ras"sic, a. (Geol.)

Defn: Of the age of the middle Mesozoic, including, as divided in England and Europe, the Lias, Oölite, and Wealden; -- named from certain rocks of the Jura mountains. -- n.

Defn: The Jurassic period or formation; -- called also the Jura.