These drastic environmental changes

with a shoulder height that could have reached 2

approximately 70-75 million years ago

We now know that the lips may have covered the teeth at rest and protected the jaw during chewing

Una vez que encuentran un lugar seguro

Dimetrodon Variant:Primed These drastic environmental changesDimetrodon, (D. grandis, `Wedge toothed), is an extinct genus of non mammalian synapsids that lived during the Lower Permian Kungurian Age, between 295 and 272 million years ago, was a terrestrial animal and is believed to have inhabited in swampy areas and riverbanks, near bodies of fresh water where it could find food. It is a member of the Sphenacodontidae family and is the best known of the Pelycosaurs, especially for its spectacular sail. It