Triassic definition

Triassic

Topics Triassic Definition

WordNet

(1) Of or relating to or denoting the first period of the Mesozoic era

(2) From 230 million to 190 million years ago; dinosaurs, marine reptiles; volcanic activity

WiktionaryText

Of a geologic period within the Mesozoic era; comprises lower, middle and upper epochs from about 250 to 200 million years ago.