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Jurassic period of the Mesozoic era is characterised byA. gymnosperms are dominant plants and first birds appearB. radiation of reptiles and origin of rnammals-like reptilesC. dinosaurs become extinct and angiosperms appearD. flowering plants and first dinosaurs appear |
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Answer» Correct Answer - A 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. |
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