An interesting discussion regarding the evolution of lizards (short video)
https://www.youtube.com/watch?time_continue=222&v=XP2r_sUtBF8
Also:
>>Lizards and snakes belong to a family of animals called squamates, and today there are almost 10,000 different species slithering around the world’s deserts, backyards, forests and mountains. But who is the mother of them all? Scientists have now pinned the origins of this family on a 240-million-year-old fossil that fills in some of the long-time blanks in their early evolutionary history. <<
https://newatlas.com/mother-of-lizards-megachirella-ancient-fossil/54848/