 
 <prompt> Wetin dey connect di modern reptiles to dia ancestors? Based on di last question, write one context wey get di answer. E fit be 1 - 20 sentences. Context: <response>: ```Early synapsid mammalian ancestors na sphenacodont pelycosaurs, one group wey produce the non-mammalian Dimetrodon. At the end of the Carboniferous period, this group branch off from the sauropsid line wey lead to today's reptiles and birds. The line wey follow the stem group Sphenacodontia split into different groups of non-mammalian synapsids—sometimes dem dey call mammal-like reptiles—before e come give rise to the proto-mammals (Therapsida) for the early Mesozoic era. The modern mammalian orders come out for the Paleogene and Neogene periods of the Cenozoic era, after the extinction of the non-avian dinosaurs 66 million years ago.``` 