(lede) by Lord Brawl Fri Jan 21 2000 at 19:10:19

The start of the Mesozoic era, 225-190 million years ago. It was the "Age of Reptiles": small dinosaurs, turtles and mammals arose. Pangaea began to split into Laurasia and Gondwanaland. Plants became complex.

Back: Permian On: Jurassic

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(definition) by Webster 1913 Wed Dec 22 1999 at 3:55:15

Tri*as"sic (?), a. Geol.

Of the age of, or pertaining to, the Trias.

--

n.

The Triassic formation.

 

© Webster 1913.

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