Permian of teiidae's clan!

Orange dog in the 4th image belongs to AstrNegative found on artfight

This is my dog. He is a good boi

Permian

Ohio, 280 mya. A young Diadectes has fallen into the murkey rapids, finding itself engulfed by an enormous Barbclabornia, the largest xenacanth to ever extist. This fish typically goes after smaller fish, but who could say no to an easy meal.

Inostrancevia was a prehistoric therapsid (this Clade is made up of modern mammals and their relatives as such Inostrancevia is often referred to as a protomammal) that was a part of the family gorgonopsidae and in fact the largest genus among all gorgonopsids

It's cooling down a bit where I am, but there's still some heat to bask in. Thus this Dimetrodon's having a good bask before a thunderstorm rolls in, drenches him and dilutes his drink.