Which periods are older than the Triassic period? Select 3 options.

Cambrian

Cretaceous

Jurassic

Permian

Silurian

Your answers are the Cambrian, Permian, Silurian time periods.

The correct answer is A, D, E.

A. Cambrian.

D. Permian.

E. Silurian.

Triassic period was termed as the period for the mesozoic era. This time period followed extinction of great mass which founded at the end of period of permian.

It is during the period of triassic when first mammal and dinosaur appeared.

During late permian, plants like horsetails and mosses were extinct.

Those plants which evolved in on the of triassic were cydophytes and confers.