. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. mooresi, n. sp. Shell very large, sub- rhomboidal, height and length sub- equal; anterior side straight from the beaks and at right angles to the poste- rior side, and then rounded into the basal line; basal margin regularly rounded; posterior eide sloping at right angles to the anterior side from the beaks and abruptly rounding into the basal margin; beaks prominent, rimng above the cardinal line, obtuse, and sit


. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. mooresi, n. sp. Shell very large, sub- rhomboidal, height and length sub- equal; anterior side straight from the beaks and at right angles to the poste- rior side, and then rounded into the basal line; basal margin regularly rounded; posterior eide sloping at right angles to the anterior side from the beaks and abruptly rounding into the basal margin; beaks prominent, rimng above the cardinal line, obtuse, and situate a little anterior to the mid- dle of the shell;, umbonal slope broa'lly rounded and undefined; pallial line strongly marked, pitted, and placed near the margin from one muscular scar to the other; anterior and poste- rior muscular scars subtrigonal and moderately impressed; a wide vascular impression, somewhat cordate, occupies the central area of the shell, extending from the anterior to the posterior mus- cular scars; one strong tooth in the right valve directed a little forward, with a socket on each side, the other tooth undefined ; surface nearly smooth, showing fine concentric lines of growth. Found by Henry Moores, of Columbus, Ohio, at Carbon Hill, Hocking Valley, in the Coal Measures, and now in the collection of Charles Fio. 018.—Wchlzodus moorest. RIglit valve, poste- rior part broken ott'. nauvooensis, Worthen, 1884, Bull. No. 2, HI. St. Mas. Nat. Hist., p. 10, and Geo. Sur. 111., vol. 8, p. 108, Keokuk (ir. orbicularis, Walcott, 1885, Monogr. U. S. Geo. Sur., vol. 8, p. 181, Devonian. ovatuB, Meek & Hayden, 1858, (Axinus ovatus,) Proc. Acad. Nat. Sci. Phil., p. 262, and Pal. Up. Mo., p. 59, Per- mian Gr. patnlus. Hall, 1886, Pal. N. Y., vo\. 5, p. 457, Chemung Gr. perelegans, Meek & Worthen, 1870, Proc. Acad. Nat. Sci. Phil., p. 42, and Geo. Sur. 111., vol. 5, p. 581, Coal Meas. I i. Please note that these images are extracted from scanned


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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology