I want to know the answer to the following question:
What was the name of extinction level event that ended the dominance of the carnivores among therapsids?
All the background I'm provided with is that "In the early Triassic, all the medium to large land carnivore niches were taken over by archosaurs which, over an extended period of time (35 million years), came to include the crocodylomorphs, the pterosaurs, and the dinosaurs.". Is that enough to answer the question?
Answer: no