. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. 66 VERTEBRATA. Crocodilicms. No 244. Crocodilus Hastingsiae, Owen. Skull and Lower Jaw. The trae Crocodiles (Tertiary and Recent species) have vertebra? concave in front and con- vex behind, (excepting the first caudal vertebra which is double-convex), and short, broad muzzles. The first tooth in the lower jaw perforates the palatal pro- cess where it is concealed when the mouth is shut; the fourth tooth in the same jaw is received into a notch exca- vated in t
. Catalogue of casts of fossils, from the principal museums of Europe and America, with short descriptions and illustrations. Fossils. 66 VERTEBRATA. Crocodilicms. No 244. Crocodilus Hastingsiae, Owen. Skull and Lower Jaw. The trae Crocodiles (Tertiary and Recent species) have vertebra? concave in front and con- vex behind, (excepting the first caudal vertebra which is double-convex), and short, broad muzzles. The first tooth in the lower jaw perforates the palatal pro- cess where it is concealed when the mouth is shut; the fourth tooth in the same jaw is received into a notch exca- vated in the side of the alveolar border of the upper jaw, and is visible when the mouth is closed. These relics of the G Hastingtiw, distinguished for its large, blunt head, were found in the Middle Eocene at Hordwell Cliffs, England, along with a true Alligator, and not far from the remains of the Ga vial-like G. Dixoni, so that these three forms, now geographically restricted, were associated at near- ly the same period in rivers flowing over what now forms the south-coast of Eng- land. As in all true Crocodiles, there is a preponderance of teeth in the upper jaw. The specimens are in the British Museum. Size, 19 x 11. Price, with mountings, $ No. 245. Crocodilus Champsoides, Owen. Skull. This species is distinguished for the large size of the temporal holes as compared with the orbits, for the regular and rapid diminution of the head towards the snout, and for the great length and slenderness of the muzzle com- pared with the G. biporcatiLS. This skull was found in the London Clay (Eocene) of the Isle of Sheppey, and is in the British Museum. Size, 9x4. Price, $ No. 246. CrOCOdilUS toliapicus, Owen. Head. This is probably identical with the G. Spcneeri of Buckland. The teeth, numbering 84, are more uniform and more separated than in living Croco- diles. The remains of this species, in the hands of Cuvier, afforded the first cer- tain proof of the existence of a true Crocod
Size: 2251px × 1110px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectfossils, bookyear1866
