LIST OF ILLUSTRATIONS XXI 



FIG. PAGE 



146. Eryops megacephalus ......... 435 



147. Glossopteris indica 437 



148. Voltzia heterophylla 449 



149. Diplurus longicaudatus . . . . . . . . . 453 



150. Skull of Belodon Kapffi . . . . . . . . -454 



151. Slab of Trigonia clavellata, from the English Jura . . . 463 



152. Dapedius politus 468 



153. Aspidorhynchus acutirostris 468 



154. Hypsocormus insignis 468 



155. Restoration of Ichthyosaurus quadriscissus 469 



156. Plesiosaurus macrocephalus ........ 470 



157. Restoration of Pterosaurian, Rhamphorhynchus .... 472 



158. Restoration of Archceopteryx macrura ...... 473 



159. Cretaceous leaves, Dakota stage 485 



160. Sassafras dissectum . . 486 



161. Cinnamomum affine . 487 



162. Glidastes velox 490 



163. Skull of Agathaumas flabellatus ....... 492 



164. Skull of Diclonius mirabilis . . . . . . . .492 



165. Flabellaria eocenica 502 



166. Skeleton of Mesohippus Bairdi . 509 



167. Skeleton of Hyracodon nebi'ascense . . . . . .510 



168. Skeleton of Aphelops fossiger 517 



169. Skeleton of Toxodon platense 523 



EXPLANATION OF THE PLATES 



Plate I. American Cambrian Fossils 373 



Fig. 1. Lingulella ccelata Hall, f. Cambrian, New York: after 



Walcott. 

 Fig. 2. Agnostus interstrictus White, \ . Middle Cambrian, Utah : 



after Walcott. 

 Fig. 3. Conocoryphe Kingi Meek, \. Cambrian, Utah : after 



Meek. 

 Fig. 4. Elliptocephalus Thompsoni Hall, \. Upper Cambrian, 



Vermont : after Walcott. 

 Fig. 5. Olenoides typicalis Walcott, f. Middle Cambrian, Nevada : 



after Walcott. 



