Bottom Of Dog Skull. The skull is a bone structure that forms the head in vertebrates. The ethmoid bone separates the nasal cavity from the brain, and it articulates with the frontal bone and sphenoid bone.

Clean skulls by leaving them outside under a flowerpot with a gap for beetles to crawl inside. A foramen magnum hole positioned at the bottom of the skull means that the spine entered the bottom of the skull in a vertical position. The skull would have been more horizontally aligned with the spine.
