Marsupial metatherian is "Sinodelphys szalayi", which lived in China around 125 mya. This makes it a contemporary to some early eutherian species which have been found in the same area. While placental fossils dominate in Asia, marsupial fossils occur in larger numbers in North America. The oldest metatherian fossils are found in present-day China. About 100 mya, the supercontinent Pangaea was in the process of splitting into the northern continent Laurasia and the southern continent Gondwana, with what would become China and Australia already separated by the Tethys Ocean. From there, metatherians spread westward into modern North America (still attached to
Gondwana (India) Gondwana (India) Gondwana is a region of India, named after the Gondi people who live there (though they can also be found in other parts of India). The name of the ancient continent of Gondwanaland was derived from Gondwana, because some of the earliest rock formations of this continent were first investigated in part of the region, in modern Odisha. As Gondi people are spread widely across central India, and are a minority almost everywhere, there is no unambiguous boundary to the region. However, the core region can be considered to be the eastern part of the Vidarbha region of