. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fki. 862.—Mytllarca chemungensiH. cordiformis. Hall, 1859, (Megambonia cor- diformis,) Pal. N. Y., vol. 3, p. 278, Low. Held. Gr. dubia, Walcott, 1885, Monogr. U. S. Geo. Sur., vol. 8, p. 168, Devonian, fibristriata. White & Whitfield, 1862, (Mytilus fibristriatufl,) Proc. Boat. Soc. Nat. Hist., vol. 8, p. 296, and Pal. N. Y., vol. 5, pt. 1, p. 264, Kinderhook Gr. gibbosa. Hall, 1884, Pal. N. Y., vol. 5, pt. 1
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fki. 862.—Mytllarca chemungensiH. cordiformis. Hall, 1859, (Megambonia cor- diformis,) Pal. N. Y., vol. 3, p. 278, Low. Held. Gr. dubia, Walcott, 1885, Monogr. U. S. Geo. Sur., vol. 8, p. 168, Devonian, fibristriata. White & Whitfield, 1862, (Mytilus fibristriatufl,) Proc. Boat. Soc. Nat. Hist., vol. 8, p. 296, and Pal. N. Y., vol. 5, pt. 1, p. 264, Kinderhook Gr. gibbosa. Hall, 1884, Pal. N. Y., vol. 5, pt. 1, p. 262, TJp. Chemung Gr. knappi, see Plethomvtilus knappi. lata. Hall, 1884, (Mytilops lata,) Pal. N. Y., vol. 5, pt. 1, p. 262, Chemung Gr. my:Uimerls, see Plethomytilus mytilimeris. nitida. Billings, 1874, Pal. Fobs., vol. 2, p. 53, Gaspe limestone No. 8, Devonian, occidentalis. White & Whitfield, 1862, (Mytilus occidentalis,) Proc. Boat. Soc. Nat. Hist., vol. 8, p. 207, and Pal. N. Y., vol. 5, pt. 1, p. 263, Kinderhook Gr. oviforvds, see Plethomytilus oviformis. percarinata, Wiiitfidd,' 1882, Ann. N. Y. Acad. Sci., vol. 2. p. 202, Up. Held. Gr. ponderosa, see Plethomytilus ponderosus. pyramidata. Hall, 1884, Pal. N. Y., vol. 5, pt. 1, p. 256, Schoharie grit. radiata, see Bvssopteria radiata. regularis. Hall, 1884, Pal. N. Y., vol. 5, pt. 1, p. 260, Chemung Gr. sigiiluui, Hall, 1876, 28th Rep. N. Y. Mus. Nat. Hist., p. 174, Niagara Gr. simplex. Hall, 1884, (Mytilops simplex,) Pal. N. Y., vol. 5, pt. 1, p. 261, Che- mung Gr. umbonata. Hall, 1884, Pal. N. Y., vol. 5, pt. 1, p. 257, Chemung Gr. Mytilops, Hall, 1884, Pal. N. Y., vol. 5, pt. 1, p. 4. [Ety. from resemblance to Mytilus,'] Resembles externally Modiola and Lithodomus. Hinge-line narrow, oblique, extending about half the longtii of tlie shell, beaks terminal. Ty\)v .M. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - col
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