Anteosaurus magnificus Megapterygius This species lived during the

This species lived during the Eocene

a genus of birds from the Eocene

The skeleton of Avaceratops lammersi displays typical ceratopsian adaptations

their body size decreased over time as the Carboniferous progressed and reached the Permian

Anteosaurus magnificus Megapterygius This species lived during theAnteosaurus magnificus was a large therapsid synapsid that lived during the Middle Permian , approximately 265 million years ago, in what is now South Africa. Belonging to the Anteosauridae family, within the Dinocephalian clade, this formidable predator is one of the largest and most robust carnivorous therapsids known before the appearance of the first dinosaurs. Its estimated size reached up to 5 or 6 meters in length , with a weight of