A, right lateral view of axis and third cervical vertebra; B, anterior view, showing the odontoid process. cvt cv3, centrum of third cervical vertebra; di ax, axis diapophysis; di cv3, diapophysis of third cervical vertebra; lpsop cv3, postspinal lamina of third cervical vertebra; na ax, axis neural arch; na cv3, neural arch of third cervical vertebra; ncs, neuro-central suture; ns ax, axis neural spine; ns cv3, neural spine of third cervical vertebra; od, odontoid process; pa ax, axis parapophysis; pa cv3, parapophysis of third cervical vertebra; poz ax, axis postzygapophysis; poz cv3, postzygapophysis of third cervical vertebra; prz cv3, prezygapophysis of third cervical vertebra. Scale bar: 10 mm.