<P> In lobe - finned fishes and the early fossil tetrapods , the bone homologous to the mandible of mammals is merely the largest of several bones in the lower jaw . In such animals , it is referred to as the dentary bone , and forms the body of the outer surface of the jaw . It is bordered below by a number of splenial bones , while the angle of the jaw is formed by a lower angular bone and a suprangular bone just above it . The inner surface of the jaw is lined by a prearticular bone , while the articular bone forms the articulation with the skull proper . Finally a set of three narrow coronoid bones lie above the prearticular bone . As the name implies , the majority of the teeth are attached to the dentary , but there are commonly also teeth on the coronoid bones , and sometimes on the prearticular as well . </P>
<P> In lobe - finned fishes and the early fossil tetrapods , the bone homologous to the mandible of mammals is merely the largest of several bones in the lower jaw . In such animals , it is referred to as the dentary bone , and forms the body of the outer surface of the jaw . It is bordered below by a number of splenial bones , while the angle of the jaw is formed by a lower angular bone and a suprangular bone just above it . The inner surface of the jaw is lined by a prearticular bone , while the articular bone forms the articulation with the skull proper . Finally a set of three narrow coronoid bones lie above the prearticular bone . As the name implies , the majority of the teeth are attached to the dentary , but there are commonly also teeth on the coronoid bones , and sometimes on the prearticular as well . </P>
where does the mandible articulate with the skull
where does the mandible articulate with the skull
the articular bone
the articular bone