1912, ISBN: 9781235880131

Paperback. New. This item is printed on demand. Paperback. This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (… Mehr…

Paperback. New. This item is printed on demand. Paperback. This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 Excerpt: . . . and elongated, whereas in Fig 10. Edaphodon agostisi (Buckland). Right mandibular in oral (a), and outer (b). views. One of the cotypes of E. smockll (Cope). No. 7192 Amer. Mus. X J. E. agassizi (smocki) it is abbreviated. In the former the anterior marginal prominence (step) is rounded at the angle, whereas in the latter it is sharp. A pair of well-preserved palatals of this species are also in the Cope collection (No. 7194 Amer. Mus. ). They were found associated with mandibulars so that it seems reasonably certain that they belong to this species. Their form, in oral aspect, and the size and arrangement of the tritors is shown in Fig. 11. These palatals are relatively wide and shallow, grooved along the dorsal surface; the groove oceupying about twothirds of the width of the upper surface. The lateral walls of the elements do not converge rapidly anteriorly. Fig. 11. Edaphodon agaiiizi (Buckland). Pair of palatal elements in oral aspect. No. 7194 Amer. Mus. X. Measurements. Length of right palatal 80 mm. Width of tritoral surface, at middle of element 27 Depth at anterior extremity of outer tritor 17 Edaphodon sedgwicki (Agassiz). European Materials. 1843. Chimeera (Psittacodon) sedgwickii Aqassiz, Poiss. Foss. , llI, p. 349, pl. xl, figs. 17, 18. 1843. Ischyodus sedgwicki (Agassiz) Egerton, Proc. Geol. Soc. London, IV, p. 156. 1847. Edaphodon sedgwicki (Agassiz) Egerton, Quart. Journ. Geol. Soc. , III, p. 352. 1878. Edaphodon sedgwickii (Agassiz) Newton, Chim. Fishes Brit. Cret. Rocks, p. 7, pl. i, ii. 1901. Edaphodon sedgwicki (Agassiz) Woodward, Catal. Foss. Fishes Brit. Mus. , II, p. 73. 1906. Edaphodon sedgwicki (Agassiz) Leriche, Poiss. Cr6t. du Nord de la France, p. 52. American Materials. 1875. Ischyodus tripartit. . . This item ships from La Vergne,TN.<