The Permian is a geologic period and system characterized among land vertebrates by the diversification of the early amniotes into the ancestral groups of the mammals, turtles, lepidosaurs and archosaurs.. 
jẹ́ olórin ará Nàìjíríà.Ìtọ́kasí àwọn Ọjọ́ìbí ni àwọn olórin ará Nàìjíríà.. 