Pucadelphys is an extinct genus of non-marsupial metatherian species. Furthermore, the scrotal epididymis of metatherian and eutherian mammals nearly all exhibit an initial segment. Unnuakomys is an extinct metatherian mammal from the Maastrichtian age of the Late Cretaceous. Along with the Australian thylacoleonids, sparassodonts include some of the largest metatherian carnivores. Anatoliadelphys maasae is an extinct genus of predatory metatherian mammal from the Eocene of Europe. Below is a metatherian cladogram from Wilson et al. Instead, nearly all known eutherian and metatherian fossils belong to other groups. The oldest metatherian fossils are found in present-day China. "Sinodelphys szalayi", living in China around 125 million years ago, is the earliest known metatherian. Bandicoots are also the only metatherian marsupials that have placentas similar to eutherian mammals. Several other metatherian taxa have been suggested to be sparassodonts or closely related to sparassodonts.