. Bulletin of the Department of Geology. Geology. 348 University of California Piihlications in Geology [Vol. 12 Lagomorpha HYPOLAGUS EDENSIS, n. sp. Type.—A fragment of the left mandible containing P3, Mj, and M2, no. 23376 (fig. 52), Univ. Calif, loc. 3269. Specimens tentatively referred to this species are the portions of a premaxilla holding an incisor, no. 23375 (fig. 53), and a small astragalus, no. 23377 (fig. 54), both from the same general locality as the type. All specimens in Univ. Calif. Coll. Vert. Pal. Characters.—The depth of the two valley-like infoldings of the exterior side o
. Bulletin of the Department of Geology. Geology. 348 University of California Piihlications in Geology [Vol. 12 Lagomorpha HYPOLAGUS EDENSIS, n. sp. Type.—A fragment of the left mandible containing P3, Mj, and M2, no. 23376 (fig. 52), Univ. Calif, loc. 3269. Specimens tentatively referred to this species are the portions of a premaxilla holding an incisor, no. 23375 (fig. 53), and a small astragalus, no. 23377 (fig. 54), both from the same general locality as the type. All specimens in Univ. Calif. Coll. Vert. Pal. Characters.—The depth of the two valley-like infoldings of the exterior side of P^, the posterior of the two extending slightly over half way across the Fig. 52. Hypolagus edensis, n. sp. P3, Mj, and Mj, no. 23376, outer and occlusal views, X 2. Fig. 53. .^Hypolagus edensis. Incisor, no. 23375, X 1. Fig. 54. Lagamorph astragalus, no. 23377, X 3. Fig. 55. Avian jihalanx, no. 599, X 2. All specimens from Eden beds, California. Description and comparison.—The specimen has the genral char- acter of the genus Hypolagus as given by Dr. L. R. Dice;^' it differs from the type species, H. vet us Kellogg, by the depth of the two infoldings of the exterior tooth surface of P3. A single deep infolding, as in H. veins, occurs in the exterior side of the associated molars. The inner sides of the teeth are rounded and lack the reentrant angles seen in H. vetus. The anterior portions of the crowns are higher than the posterior. Measurements of Type Dentition, No. 23376 P3, greatest anteroposterior diameter mm. P5, greatest transverse diameter Mj, greatest anteroposterior diameter 2 Ml, greatst transverse diameter Mj, greatest anteroposterior diameter Mj, greaetst transverse diameter 37 Dice, L. R. Systematic Position of Several American Tertiary Lagamorphs. Univ. Calif. Publ., Bull. Dept. Geol., vol. 10, pp. 181-183, Please note that these images are extracted from scanned page images that may have been digitally enhanced for rea
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