Context: 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.

Question: How many years did the Late Jurassic cover?
Answer: 163 million to 145 million

Question: What did the separation of Pangaea cause to become extinct?
Answer: sauropods and Ichthyosaurs

Question: What is the extinction caused by the splitting of Pangaea called?
Answer: Jurassic-Cretaceous extinction

Question: What caused the destruction of fern prairies and increasing shallows?
Answer: Sea levels rose

Question: What did the rise in sea levels open in the seaways? 
Answer: Atlantic sea

Question: In the Late Jurassic what species survived?
Answer: Unanswerable

Question: The separation of Pangaea allowed what species to thrive above others?
Answer: Unanswerable

Question: Sea levels fell during what time period that spanned from 163 million to 145 million years ago?
Answer: Unanswerable

Question: The increase in sea levels closed up which sea?
Answer: Unanswerable