What was the total surface area of the supercontinent where Tritheledontids have lived ?
Tritheledontidae:  Tritheledontids became extinct in the Jurassic period, possibly due to competition with prehistoric mammals such as the triconodonts. Gondwana:  It was the largest continental landmass on Earth, covering an area of 1000000 km2 or 64% of today's continents.
i don't know