What was the total surface area of the supercontinent where Tritheledontids have lived ?
Tritheledontidae:  They are known from finds in South America and South Africa, indicating that they may have lived only on the supercontinent of Gondwana. 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