Jurassic period of the Mesozoic era is characterised by

Options

A. gymnosperms are dominant plants and first birds appear
B. radiation of reptiles and origin of rnammals-like reptiles
C. dinosaurs become extinct and angiosperms appear
D. flowering plants and first dinosaurs appear

Answer

A

Explanation

Jurassic period is the second geological period of Mesozoic era . In this period , the gymnosperms were dominth and the plants included ferns, cycads , Ginkgo , conifers, etc. Among animals, important invertebrates included anamniotes, corals. brachiopods, bivalves and echinoids. Reptiles dominat~d the · vertebrates and the first flying reptiles, the pterosaurs appeared. The first primitive bird, Archaeopteryx also made its appearance.