332 PETRIFACTIONS AND THEIR TEACHINGS. CHAP. III. 



and described by Baron Cuvier, (" Oss. Foss" tome v. PI. 

 XXII. figs. 1 & 2, p. 352,) as follows : 



" Corps cylindrique, presque aussi long que large, marque" de 

 chaque cote d'une petite fossette, a faces planes, circulaires, & 

 canal me"dullaire fort e"troit, k partie annulaire non articulee ; 

 1'apophyse e"pineuse, haute, et droite ; les transverses au niveau 

 du canal medullaire, grosses, cylindriques, dilatees verticale- 

 ment an bout ; et, ce qui est tres remarquable, les articulaires 

 posterieures petites, pointues, rapprochees, et donnant dans 

 deux petites fossettes entre les anterieures et au-devant de la 

 basse de 1'epineuse." 



In the autumn of the year 1849, 1 obtained from Mr. Peter 

 Fuller, of Lewes, the most stupendous hurnerus of a terrestrial 

 reptile ever discovered ; it is 4J feet in length, and 32 inches 

 in circumference at the distal end. It was found in the Igua- 

 nodon quarry near Cuckfield, in the bed of sandstone whence 

 the gigantic vertebrae under examination were exhumed ; 1 and 

 two distal caudals, with the same remarkable character of the 

 zygapophyses, have since been obtained. It appears to me 

 highly probable that the gigantic bone of the fore-limb and 

 these vertebrae, belonged to the same genus of terrestrial sau- 

 rians ; and as the vertebrae are unquestionably distinct from 

 those of the Cetiosauri, I would provisionally assign them to 

 the new genus Pelorosaurus ; for I have obtained dorsal ver- 

 tebrae, chevron-bones, coracoids, and scapulae, which prove 

 that the original animal is referable to the Dinosaurian 

 order, as characterised by a sacrum composed of five or six 

 anchylosed bones, and vertebrae with high and expanded neu- 

 rapophyses like the Iguanodon and Megalosaurus. 



These vertebrae are distinguished by the subquadrangular 

 form of the articular facets, and the shortness of the an- 

 tero-posterior diameter of the bodies. They are slightly con- 

 cave in front, and almost flat behind, the upper part of the 

 anterior face being the deepest : the sides of the body are 

 concave, both lengthwise and vertically, with a tranverse 

 median convexity. 



The inferior surface of the centrum is slightly concave 



1 See "Memoir on the Pelorosaurus, an undescribed gigantic terres- 

 trial reptile, whose remains are associated with those of the Iguanodon, 

 in the strata of Tilgate Forest." "Philos. Trans." 1850, p. 379. 

 See APPENDIX H. 



