Question

Jurassic period of the Mesozoic era characterized by-

• A. Gymnosperms are dominant plants and first birds appear
• B. Radiation of reptiles and origin of mammal like reptiles
• C. Dinosaurs become extinct and angiosperms appear
• D. Flowering plants and first dinosaurs appear

Answer 1

The correct option is A Gymnosperms are dominant plants and first birds appear

A Jurassic period is the second geological period of the Mesozoic era. In this period, the gymnosperms were dominant and the plants included ferns, cycads, Ginkgo, rushes, and conifers. Among animals, important invertebrates included ammonites, corals, brachiopods, bivalves, and echinoids. Reptiles dominated the vertebrates and the first flying reptiles the pterosaurs appeared. The first primitive bird, Archaeopteryx, also made its appearance.

So, the correct answer is 'Gymnosperms are dominant plants and first birds appear'.