TABLE OF CONTENTS. VH 



Osteology of Stegosaurus — Continued. P^„g 

 Dermal armor — Continued. 



Nuchal plates ^. 92 



Dorsal plates 92 



Caudal plates 93 



Dermal spines 95 



Arrangement of the armor 96 



Morphology of plates lOO 



The geniia Stegosaurus 101 



Generic characters 103 



Description of species 104 



Stegosaurus stenops Marsh 104 



History of the type-specimen 106 



Position of the skeleton 106 



Theory of fossilization 107 



Stegosaurus sulcaius Marsh 109 



Stegosaurus longispinus, new species Ill 



Hoplitosaurus marshi (Lucas) 114 



Dinosaur armor from the Lance formation 121 



Restorations of Stegosauriis 122 



List of works cited '. , 127 



Explanation of plates 131 



Index 137 



