. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Pin. 1185.—Hylerpeton dawRonl. Mandible and portion of cranial bone. Hblodkctks, Cope, 1880, Pal. Bull. No. 32, p. 11. [Ety. helos, a nail; dektea, a biter.] Two rows of subround molari- form teeth in each jaw. Type H. paridens. isaaci. Cope, 1880, Pal. Bull. No. 32, p. 12, Permian, paridens, Cope, 1880, Pal. Bull. "^^No. 32, p. 11, Permian. Hylerpeton, Owen, 1862, Quar. Jour. Geo. Soc, vol. 18, p. 5. [Ety. h
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Pin. 1185.—Hylerpeton dawRonl. Mandible and portion of cranial bone. Hblodkctks, Cope, 1880, Pal. Bull. No. 32, p. 11. [Ety. helos, a nail; dektea, a biter.] Two rows of subround molari- form teeth in each jaw. Type H. paridens. isaaci. Cope, 1880, Pal. Bull. No. 32, p. 12, Permian, paridens, Cope, 1880, Pal. Bull. "^^No. 32, p. 11, Permian. Hylerpeton, Owen, 1862, Quar. Jour. Geo. Soc, vol. 18, p. 5. [Ety. hyle, wood; erpeton, reptile.] Teeth simple, bluntly conical, with large pulp-cavity; about 13 on one side of a jaw; two of the anterior ones of the upper jaw twice as large as the others and deeply sunk in the jaw. Length of lower jaw i imh; bones of skull puncto-striate. Type H. dawsoni. curtidentatum, Dawson, 1876, Am. Jour. Sci. and Arts, vol. 12, Coal Meas. dawsoni, Owen, 1862, Quar. Jour. deo. Soc, vol. 18, p. 5, and Acadian Geology p. 380, Coal Meas. longidentatum, Dawson, 1876, Am. .lour. Sci. and Arts, vol. 12, Coal Meas. HYr/)NOMus, Dawson, 1860, Quar. Jour. (leo. Soc, vol. 16, p. 268. [Ety. hyle, wood; nomas, an abode; forest dweller.] Cra- nial bones thin, smooth; parietal bones arched; about 26 teeth in each maxil- lary, elongated, conical, set in a Bingle series, in a furrow, protected externally by an alveolar ridge; teeth longer in intermaxillaries and extremities of man- dibles than elsewhere; vertebrae ossi- fied, biconcave, with spinous processes; ribs long and curved; pelvis large; ilium long, expanded below, ischium expanded; pubis expanded, triangular where it joins the ischium, round and arched toward the symphysis; femur thick, nearly straight; tibia short, stout; fibula slender; phalanges broad. Der- mal covering of ovate bony scales. Type H. lyelli. aciedentatus, Daw- son, 1860, Quar. Jour. Geo. Soc, vol. 16, p. 268, and Acad. Geol., F^o-. 118«--
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