ILLUSTRATIONS. 



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Plate II. Anchisaurus colurus Marsh. Triassic 248 



III. Anchisaurus and Ammosaurus. TriaBsic 250 



IV. Restoration of Anchisaurus colurus Marsh 252 



V. Footprints of Triassic dinosaurs 254 



VI. Hallopus victor Marsh. Jurassic ' 256 



VII. Ccelurus fragilis Marsh. Jurassic 258 



VIII. Ceratosaurus nasicornis Marsh. Jurassic 260 



LX. Ceratosaurus nasicornis. Jurassic _.. 262 



X. Ceratosaurus, Allosaurus, Ccelurus. Jurassic 264 



XI. Allosaurus fragilis Marsh. Jurassic 266 



XII. Creosaurus atrox Marsh. Jurassic. 268 



XIII. Labrosaurus. Jurassic 270 



XIV. Restoration of Ceratosaurus nasicornis Marsh 272 



XV. Atlantosaurus montanus Marsh. Jurassic 274 



XVI. Atlantosaurus immanis Marsh. Jurassic 276 



XVII. Atlantosaurus and Apatosaurus. Jurassic 278 



XVIII. Apatosaurus. Jurassic 280 



XIX. Apatosaurus and Morosaurus. Jurassic 282 



XX. Brontosanrus excelsus Marsh. Jurassic 284 



XXI. Brontosanrus excelsus. Jurassic 286 



XXII. Sternal plates of Brontosaurus and young Struthio 288 



XXIII. Brontosaurus excelsus. Jurassic 290 



XXIV. Brontosaurus excelsus. Jurassic 292 



XXV. Diplodoeus lougus Marsh. Jurassic 294 



XXVI. Diplodoeus longus. Jurassic 296 



XXVII. Diplodoeus longizs. Jurassic 298 



XXVIII. Diplodoeus longus. Jurassic 300 



XXIX. Diplodoeus and Morosaurus. Jurassic 302 



XXX. Morosaurus. Jurassic 304 



XXXI. Morosaurus grandis Marsh. Jurassic 306 



XXXII. Morosaurus. Jurassic 308 



XXXIII. Morosaurus lentus Marsh. Jurassic 310 



XXXIV. Morosaurus. Jurassic 312 



XXXV. Morosaurus. Jurassic 314 



XXXVI. Morosaurus and Apatosaurus. Jurassic 316 



XXXVLI. Morosaurus. Jurassic 318 



XXXVIII. Morosaurus grandis. Jurassic 320 



XXXIX. Brontosaurus, Apatosaurns, Morosaurus, and Diplodoeus. Jurassic. 322 



XL. Plenroccelus nanus Marsh. Jurassic 324 



XLI. Plenroccelus nanus. Jurassic 326 



XLII. Restoration of Brontosaurus excelsus Marsh 328 



XLIII. Stegosaurns stenops Marsh. Jurassic 330 



XLIV. Stegosaurns and Priconodon. Jurassic 332 



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