[PAR] [TLE] Tritheledontidae [SEP] The Tritheledontidae or tritheledontids, also known as ictidosaurs, were small to medium-sized (about 10 or 20 cm long) cynodonts.  They were extremely mammal-like, highly specialized cynodonts, although they still retained a very few reptilian anatomical traits.  Tritheledontids were mainly carnivorous or insectivorous, though some species may have developed omnivorous traits.  Their skeletons show that they had a close relationship to mammals. Tritheledontids or their closest relatives may have given rise to primitive mammals.  The tritheledontids were one of the longest lived non-mammalian therapsid lineages, living from late Triassic to the Jurassic period.  Tritheledontids became extinct in the Jurassic period, possibly due to competition with prehistoric mammals such as the triconodonts.  They are known from finds in South America and South Africa, indicating that they may have lived only on the supercontinent of Gondwana.  The family Tritheledontidae was named by South African paleontologist Robert Broom in 1912.  The family is often misspelled "Trithelodontidae". [PAR] [TLE] Gondwana [SEP] Gondwana ( ), or Gondwanaland, was a supercontinent that formed from the unification of several cratons in the Late Neoproterozoic, merged with Laurussia in the Carboniferous to form Pangaea, and began to fragment in the Mesozoic.  It was the largest continental landmass on Earth, covering an area of 1000000 km2 or 64% of today's continents.  Located in the Southern Hemisphere, it incorporated several modern landmasses, including Antarctica, South America, Africa, Madagascar, and Australia, as well as the Arabian Peninsula and the Indian subcontinent, which have now moved entirely into the Northern Hemisphere.
[PAR] [TLE] Tritheledontidae [ SEP ] The Tritheledontidae or tritheledontids , also known as ictidosaurs , were small to medium - sized ( about 10 or 20 cm long ) cynodonts . They were extremely mammal - like , highly specialized cynodonts , although they still retained a very few reptilian anatomical traits . Tritheledontids were mainly carnivorous or insectivorous , though some species may have developed omnivorous traits . Their skeletons show that they had a close relationship to mammals . Tritheledontids or their closest relatives may have given rise to primitive mammals . The tritheledontids were one of the longest lived non - mammalian therapsid lineages , living from late Triassic to the Jurassic period . Tritheledontids became extinct in the Jurassic period , possibly due to competition with prehistoric mammals such as the triconodonts . They are known from finds in South America and South Africa , indicating that they may have lived only on the supercontinent of Gondwana . The family Tritheledontidae was named by South African paleontologist Robert Broom in 1912 . The family is often misspelled " Trithelodontidae " . [PAR] [TLE] Gondwana [ SEP ] Gondwana ( ) , or Gondwanaland , was a supercontinent that formed from the unification of several cratons in the Late Neoproterozoic , merged with Laurussia in the Carboniferous to form Pangaea , and began to fragment in the Mesozoic . It was the largest continental landmass on Earth , covering an area of 1000000 km2 or 64 % of today 's continents . Located in the Southern Hemisphere , it incorporated several modern landmasses , including Antarctica , South America , Africa , Madagascar , and Australia , as well as the Arabian Peninsula and the Indian subcontinent , which have now moved entirely into the Northern Hemisphere .
What was the total surface area of the supercontinent where Tritheledontids have lived ?
What was the total surface area of the supercontinent where Tritheledontids have lived ?
1000000 km2
1000000 km2