| In the adults of most vertebrates, the braincase is largely fused into a single solid mass. |
| The crista prootica is a ridge or ledge of the prootic which runs antero-posteriorly along the side of the braincase above the otic capsule. |
| During jaw retraction, the neck was straightened, thereby pushing the braincase anteriorly as the lower jaw was pulling the prey caudally. |
| The otic capsule became somewhat separated from the rest of the braincase as a pair of petrosals. |
| It forms the floor of the braincase under the posterior part of the otic capsule. |
| The outer wall of the braincase becomes the alisphenoid and the dermal skull bones. |
