part of develops from ends during starts during sclerotomal cartilage death postcranial axial skeleton XAO:0003073 xenopus_anatomy UBERON:0002090 Skeletal structure that has as its parts the vertebral column, located in the dorsal part of the trunk, and is formed by a series of vertebrae. It provides suspension for the appendicular skeleton and protection for the spinal nerve cord. axial skeleton skeletal subdivision NF stage 45