VI TABLE OF CONTENTS. 



The genus Antrodemus — Continued. 



Osteology Antrodemus — Continued. Page. 



Vertebral column 31 



Atlas 31 



Axis 32 



Cervicals posterior to the axis 34 



Dorsal vertebrae '. 36 



First and second dorsals : 37 



Third and fourth dorsals 37 



Fifth dorsal 39 



Sixth to the thirteenth dorsal 39 



Fourteenth dorsal 42 



Measurements of presacral vertebrae '. 43 



Sacral vertebrae 43 



Measurements of sacral vertebrae 45 



Caudal vertebrae 45 



Chevrons 48 



Ribs 48 



Cervical ribs 48 



Thoracic ribs 50 



Abdominal ribs 53 



Fore limb and foot 55 



Scapula 57 



Coracoid .' 58 



Humerus 58 



Ulna , 59 



Radius 60 



Carpus 60 



Metacarpus 61 



Phalanges 62 



Phalangial formulae o{ various Theropod Dinosauria 64 



Pelvis 65 



Ilium 65 



Pubis 66 



Ischium 67 



Hind limb and foot 68 



Femur 68 



Tibia 69 



Fibula 71 



Tarsus 71 



Calcaneum 71 



Astragalus 72 



Metatarsus ■ 73 



Phalanges 74 



Family Ceratosauridae : 76 



Family characters 76 



Generic characters 76 



CeralosauTus 7iasicomis Marsh 76 



Osteology of Ceratosaurus 78 



Skull 78 



Basioccipital 79 



Exoccipital 79 



Paraoccipital 79 



Supraoccipital 79 



Alisphenoid .■ 79 



