VI TABLE OF CONTENTS. 



Osteology of Stegosaurus — Continued. 



External openings in the skull — Page. 



Supratemporal fossae '. 40 



Infratemporal fossae : 40 



Orbital cavities 41 



Anterior nares 41 



Posterior nares 41 



Palatine vacuities ■ 41 



Foramen magnum 41 



Lesser foramina 41 



Brain 43 



Teeth 44 



Vertebral column 45 



Atlas 45 



Axis 47 



Cervicals posterior to the axia 47 



Dorsal vertebrae 49 



Dorso-sacral 52 



Sacrum 53 



Caudo-sacral 57 



Caudal vertebrae ^ 58 



Chevrons 61 



Ribs 63 



Cervical ribs 63 



Dorsal ribs 63 



Sternal bones 65 



Shoulder girdle 66 



Scapula 66 



Coracoid 67 



Fore limb and foot 68 



Hiunerus 68 



Ulna - 69 



Radius 69 



Fore foot 70 



Carpus 70 



Radiale 71 



Intermedivun •. 71 



Ulnare 72 



Pisiform 72 



Metacarpus. 72 



Phalanges 75 



Pelvis 77 



Ilium 77 



Pubis 78 



Ischium 79 



Hiad limb and foot 80 



Femur 80 



Tibia 84 



Fibula 85 



Hind foot 86 



Astragalus 86 



Calcaneum 87 



■ Metatarsus ; 87 



Phalanges 89 



Dermal armor 91 



Dermal ossicles 91 



