Tag Archives | Origin and Ancestry of Mammals

There can be no doubt that the earliest mammals made their appearance in Jurassic times as descendants of some of the true mammal-like reptiles, the Therapsida. However, scientists put forwarded two important ideas- Ancestry through Amphibia and Ancestry through Reptilia about the origin and ancestry of mammals. Ancestry through Amphibia: It was T.H. Huxley (1880) who advocated amphibian ancestry of [...]