I want to know the answer to the following question:
Around what time did Therapsids become the dominant land animal?
All the background I'm provided with is that "The therapsid lineage leading to mammals went through a series of stages, beginning with animals that were very like their pelycosaur ancestors and ending with probainognathian cynodonts, some of which could easily be mistaken for mammals.". Is that enough to answer the question?
Answer: no