| OCR Text |
Show 1905.] DINOSAUR CETIOSAURUS LEEDSI. 243 Text- Text- Text- Text-fig. 42. fig. 43. fig. 44. fig. 45. 0-58 0-45 0-225 0-03 0-105 0-18 0-17 0-09 0-23 0-17 o-io 0-027 0-245 0-15 0-085 0-02 0-535 The following table gives some of the more important measurements (in metres) of the associated bones in specimen no. R. 3078 Caudal Vertebra described and figured:- Text-fig. 41. Total height to summit of spine ............ 0"66 Length of centrum ......................................... O'lO Max. depth of centrum, posterior end ... 0 2 7 Max. width „ „ „ ... 0'28 Width between extremities of trans. proc............. 0'Fore Limb :- Total length of scapula .................................................. Width of middle of scapula ......................................... Maximum thickness of scapula at articular end... Total length of coracoid.................................................. Probable extreme width of coracoid......................... Total height to top of humerus as mounted ...... Total length of humerus.................................................. Thickness of articular head of humerus ................. Transverse width of upper end of humerus........... „ „ lower end of humerus............ „ diameter of middle of humerus............ Antero-posterior diameter of middle of humerus Total length of radius and ulna.................................... Transverse width of upper end of radius................. „ „ ,, ulna ................. about Sind Limb :- Extreme length of ilium.................................. ,, depth of ilium at pubic pedicle.. Maximum diameter of acetabulum ........... Total height to top of femur as mounted Total length of femur....................................... Transverse width of upper end of femur „ ,, lower end of femur .. about 0965 0 1 7 5 0 1 6 5 0 3 5 0-38 2-00 0-94 0 1 5 5 0-42 0-29 0-18 0-135 0-76 0-185 0-26 1-02 0-51 0-30 3-15 1-36 0 3 3 0-33 0-19 Transverse Hind Foot:- Metatarsals width of distal end. Claw of Digit I . : " below 4th trochanter 0-145 " 0-195 I. ir. I I I . IV . V . 0-16 0-21 0-22 0 2 1 5 0 195 0-13 o -ii 0-08 0 0 7 0-04 0-07 ? p 0-05 0-075 0 1 2 5 „ width of articular en d ............................... 0"06 „ length of upper curved edge ................. 0 '27 In conclusion, it is evident that the late Professor Marsh* was justified in regarding Cetiosaurus as one of the most generalised of known Sauropoda, closely related to the American Morosauridse. So far as known, in fact, this English Jurassic genus is scarcely distinguishable from the least specialised American genus Haplo-canthosaurus +, which has remarkably similar dorsal and anterior caudal vertebrae, but seems to differ in the more coarsely cancellated texture of the bone in its vertebral centra. * O. C. Marsh, " Comparison of the Principal Forms of Dinosauria of Europe and America," Geol. Mag. [3] vol. vi. (1889) p. 205. f J. B. Hatcher, " Osteology of Haplocanthosaurus," Mem. Carnegie Mus. vol. ii. no. 1 (1903). |
