Context: The Late Triassic spans from 237 million to 200 million years ago. Following the bloom of the Middle Triassic, the Late Triassic featured frequent heat spells, as well as moderate precipitation (10-20 inches per year). The recent warming led to a boom of reptilian evolution on land as the first true dinosaurs evolve, as well as pterosaurs. All this climatic change, however, resulted in a large die-out known as the Triassic-Jurassic extinction event, in which all archosaurs (excluding ancient crocodiles), most synapsids, and almost all large amphibians went extinct, as well as 34% of marine life in the fourth mass extinction event of the world. The cause is debatable.

Question: What was the span of the Late Triassic?
Answer: 237 million to 200 million years

Question: Besides moderate precipitation, what weather conditions did the Late Triassic have?
Answer: heat spells

Question: When did the first dinosaurs evolve?
Answer: Triassic

Question: According to theory, what did climate change in the Late Triassic cause?
Answer: Triassic-Jurassic extinction

Question: What was the only archosaur to survive the fourth mass extinction?
Answer: crocodiles

Question: Besides moderate precipitation, what weather conditions did the Late Triassic not have?
Answer: Unanswerable

Question: What lead to the demise of a certain segment of reptilian evolution?
Answer: Unanswerable

Question: What resulted in a relatively small die-out known as the Triassic Jurassic extinction event?
Answer: Unanswerable

Question: What survived the Triassic Jurassic extinction event?
Answer: Unanswerable

Question: 34% of marine life survived what extinction event?
Answer: Unanswerable