Question

Which major animal group first appeared during the Jurassic period?

Options

• Amphibians

• Toothed birds

• Jawed fishes

• Land mammals

Answer 1

During the Jurassic period, approximately 170 million years ago, toothed birds first appeared and reptiles remained dominant. The origin of angiosperms and rise of leptosporangiate ferns characterized the plant life of this period.