part_of part of is part of part of develops from anatomical entity anatomical entity vertebral column sclerotome skeletal element vertebral element vertebral UBERON:0015005 vertebral endochondral element VHOG:0001143 UBERON:0010913 vertebra element In contrast to lampreys and jawed vertebrates, hagfishes were thought to lack vertebrae. Now, long overlooked vertebral rudiments have been analysed in hagfish, suggesting that vertebrae existed in the last common ancestor of all vertebrates.[well established][VHOG] uberon vertebra skeletal element Typically an endochondral element, in salamanders there is an argument that vertebral development is perichondral and not preformed in cartilage Skeletal element that forms around the notochord and is part of the vertebral column. vertebra endochondral element we include a distinct subclass for bony vertebra VSAO:0000184