Monograph on the Fossil Reptilia of the Wealden and Purbeck Formations, Teile 1-5Palaeontographical Society, 1853 |
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alveolar anchylosed angle antero-posterior diameter articular end articular surface articulation base belonged body bone border breadth British Museum canal caudal vertebræ cavity centrum cervical vertebræ Cetiosaurus characters compressed convex coracoid costal Crocodiles Crocodilian crown Cuvier dentary diapophysis Dinosaurian dorsal vertebræ Echinodon expanded extent extremity femur figured flattened foramina fore fossil FOSSIL REPTILIA genus groove humerus Hylæosaurus Iguana Iguanodon inner side interspace Isle of Wight Lacertian lines Lizards longitudinal lower jaw Mantell Mantellian Collection margin medullary Megalosaurus metapodial middle Monograph neural arch neural spine neurapophysis obliquely Oolitic outer side parapophysis Pelorosaurus phalanx plate Pleurosternon portion posterior present proportion proximal end Purbeck reptile resembles ridge sacral vertebræ sacrum Saurian scapula scutes shaft skeleton slightly concave species specimen Stonesfield Streptospondylus Sussex teeth thick tibia Tilgate Forest tooth transverse diameter transverse process tubercle ungual phalanges upper vascular Vertical diameter Wealden Wealden of Tilgate young Iguanodon
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Seite 18 - Iguanodon, and the magnitude of the anterior outlets which gave exit to the vessels and nerves that supplied the front of the mouth, indicate the great development of the integuments and soft parts with which the lower jaw was invested.
Seite 50 - ... with the longest femora or humeri. This characteristic is nevertheless one of the most important towards a restoration of the extinct reptile, since an approximation to a true conception of the size of the entire animal coxild only be made after the general proportions of the body to the extremities had been ascertained.
Seite 34 - ... inches across, a proportion which corresponds with that of the acetabular concavity in the ilium, and with the size of the cavity in which the head of the Iguanodon's femur must have been received. One angle of the, cavity corresponding with the anterior one in the Varanus, is raised ; a broad and low obtuse ridge bounds the rest of the free margin of the cavity. The smooth labrum exchanges its character near one of the fractured edges of the bone for a rough surface, which indicates the commencement...
Seite 51 - Iguanodon would be 1 1 feet 5 inches ; which is about equal to that of the Megatherium. If there be any part of the skeleton of the Iguana which may with greater probability than the rest be supposed to have the proportions of the corresponding part of the Iguanodon, it is the lower jaw, by virtue of the analogy of the teeth and the substances they are adapted to prepare for digestion. Now the lower jaw gives the length of the head in...
Seite 50 - Iguanodon; and, hence, the dimensions of 100 feet in length arrived at by a comparison of the teeth and clavicle of the Iguanodon with the Iguana, of 75 feet from a similar comparison of their femora, and of 80 feet from that of the claw-bone, which, if founded upon the largest specimen from Horsham, instead of the one compared by Dr. Mantell *, would yield a result of upwards of 200 feet for the total length of the Iguanodon, since the Horsham phalanx exceeds the size of the largest of the recent...
Seite 17 - England,' pi. ii. fig. 5, the resemblance of which to the ' os quadratum,' or tympanic bone of birds, was first suggested by Dr. Hodgkin, is assigned to the Iguanodon by Dr. Mantell. He accurately describes it " as forming a thick pillar or column, which is contracted in the middle, and terminates at both extremities in an elliptical and nearly flat surface.