The Late Jurassic spans from 163 million to 145 million years ago. The Late Jurassic featured a massive extinction of sauropods and Ichthyosaurs due to the separation of Pangaea into Laurasia and Gondwana in an extinction known as the Jurassic-Cretaceous extinction. Sea levels rose, destroying fern prairies and creating shallows in its wake. Ichthyosaurs went extinct whereas sauropods, as a whole, did not die out in the Jurassic; in fact, some species, like the Titanosaurus, lived up to the K-T extinction. The increase in sea-levels opened up the Atlantic sea way which would continue to get larger over time. The divided world would give opportunity for the diversification of new dinosaurs. COUNT 5
QSN1 How many years did the Late Jurassic cover? ANS1 163 million to 145 million QSN2 What did the separation of Pangaea cause to become extinct? ANS2 sauropods and Ichthyosaurs QSN3 What is the extinction caused by the splitting of Pangaea called? ANS3 Jurassic-Cretaceous extinction QSN4 What caused the destruction of fern prairies and increasing shallows? ANS4 Sea levels rose QSN5 What did the rise in sea levels open in the seaways?  ANS5 Atlantic sea