Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ..By Richard Lydekker .. . Ichthyosaurus trigonus.—Left lateral and anterior aspects of the centrum ofan early posterior dorsal vertebra ; from the Kirueridge Clay of Stanton.§. a, upper, b, lower costal tubercle. of /. platyodon. The variations in the relations of thecostal tubercles are noticed in the above-mentionedvertebral column of the latter species. Purchased, 1880. 24684 d. The centrum of a large late posterior dorsal vertebra; (Fig.) from the Kimeridge Clay of Wootton-Bassett. This specimen (fig. 14
Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural history) ..By Richard Lydekker .. . Ichthyosaurus trigonus.—Left lateral and anterior aspects of the centrum ofan early posterior dorsal vertebra ; from the Kirueridge Clay of Stanton.§. a, upper, b, lower costal tubercle. of /. platyodon. The variations in the relations of thecostal tubercles are noticed in the above-mentionedvertebral column of the latter species. Purchased, 1880. 24684 d. The centrum of a large late posterior dorsal vertebra; (Fig.) from the Kimeridge Clay of Wootton-Bassett. This specimen (fig. 14) agrees with Phillipss description (op. cit. Pig. Ichthyosaurus trigonus.—Left lateral and anterior aspects of the centrum ofa late posterior dorsal vertebra; from the Kimeridge Clay of Wootton- Bassett. a, upper, b, lower costal tubercle. p. 336) of the 40th vertebra; the outline of the facenarrowing upwards, and the height being nearly equal tothe width. The length of Phillipss specimen is, however,said to be greater. Cunnington Collection, ICHTHYOSArRIT*^. ^ i 46473 a. A smaller centrum of a posterior dorsal vertebra, agreeingin characters with the preceding; from the KimeridgeClay of Foxhangers, near Devizes, Wiltshire, Cunnington Collection. Purchased, 1875. 41776 a. Two associated centra of posterior dorsal vertebras; fromthe Kimeridge Clay of Weymouth. These specimensagree with the last, but their contour is somewhat alteredby crushing. Purchased. 20285. The centrum of a caudal vertebra; from the KimeridgeClay of Ely, Cambridgeshire. Vertical diameter 0,093(3-65 inches), transverse 0,091 (3-58 inches), length 0,038(1*5 inche
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Keywords: ., bookauthorlydekkerrichard184919, bookcentury1800, bookdecade1880
