Early closure of this cranial suture caused the boy's skull to be asymmetrical. More striking, the researchers noted in their study, was the person's abnormally shaped upper jaw, coupled with at ...

In the Chondrichthyes, the skull consists of chondrocranium and upper jaw. In the Osteichthyes through mammals, the skull is a fused unit in which the braincase is added to and welded together by a ...

This image shows the upper jaw and skull of Maiabalaena nesbittae. Whales were the first mammals to evolve baleen, and no other mammal uses any anatomical structure even remotely similar to it to ...

In the Chondrichthyes, the skull consists of chondrocranium and upper jaw. In the Osteichthyes through mammals, the skull is a fused unit in which the braincase is added to and welded together by a ...