The walking Crocotoad

An Eryops megacephalus lonely walks along the lake shore in the early Permian of Texas. This predator-macrophage had strong limb bones and girdle limbs, which indicates the good ability to move on the land. However, he preferred to hunt in the water, as the specific structure of the first cervical vertebra made it impossible for lateral movement of the neck. Such cases. Wish him successfully hunt.  

Black gel pen, gray marker, technical and black pencils, 2017.