foramen magnumthe opening at the base of the skull where the spinal column and nerves enter to reach the brain. The position of the foramen magnum can be used to determine if a species was bipedal.Elon.io is an online learning platformWe have an entire course teaching Anthropology grammar and vocabulary.Start learning Anthropology nowYour questions are stored by us to improve Elon.ioYou've reached your AI usage limitSign up to increase your limit.