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. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. ORT.] CEPHALOPODA. 445. ClQ. 748. — Olico cenis constrie tuiii. tuhmlcaiuiy Phillips, 1836, Geo. York. Not dearly identified in tills country. tulcatm, see Trematodiscus sulcatus. triyonm, see Treniatodiseus trigonus. trimlcatUK, see Trematoditcus trisnlcatus. tyians, Billings, 1859, Can. Nat. and Geo., ' vol. 4, p. 4()5, Ohazy Gr. , Billings, 1865, Pal. Foas., vol. 1, 'K 259, Quebec Gr. Type of Hy
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. ORT.] CEPHALOPODA. 445. ClQ. 748. — Olico cenis constrie tuiii. tuhmlcaiuiy Phillips, 1836, Geo. York. Not dearly identified in tills country. tulcatm, see Trematodiscus sulcatus. triyonm, see Treniatodiseus trigonus. trimlcatUK, see Trematoditcus trisnlcatus. tyians, Billings, 1859, Can. Nat. and Geo., ' vol. 4, p. 4()5, Ohazy Gr. , Billings, 1865, Pal. Foas., vol. 1, 'K 259, Quebec Gr. Type of Hyatt's sicnuH Litoceras. viiisloiri, set! Temnocliilus winslowi. ^'elilllenia incognita, Castelnau, 1843, Syst. Sil., p. 33. Trobably a frngment of I'liragmoceras or Oncoceras. Ontoceras. Hall, 1847, Pal. N. Y., vol. 1, p. Vm. [Ety. jnAo.'j, swelling ; ieras, horn.] (^mved, aperture constricted; lower part of the body chamber, and upper part of septate portion ventricose ; aiv ^ ^,,^ ruptly contracted to- for N. niairel- I » ^^"SK&k. ward the apex; siphun- cle dorsal; septa plane, nearly flat, slightly ele- vated on the dorsal margin. Type O. con- strictum. abruptum, Hall, 1861, Rep. of Progr. Wis., p. 44, Trenton Gr. alceus, Hall, 1861, Rep. of Progr. Wis., p. 46, Chazy and Black Riv. Grs. amator, Billings, 1866, Catal. Si'. Foss. Antic, p. 59, Clint 1 Gr. brevicurvatuni, Whitfield, 1880, Ar ^ Rep. Geo. Sur. Wis., p. 59, and Geo. Wis., vol. 4, p. 234, Trenton Gr. constrictum, Hall, 1847, Pal. N. Y., vol. 1, p. 197, Black Riv. and Trenton Grs. dilatatum, Hall, 1860, 13th Rep. N, Y. Mus. Nat. Hist., p. 105, Ham. Gr. expansum. Hall, 1852, Pal. N. Y., vol. 2, p. 337, Coralline limestone, futile, Billings, 1866, Catal. Sil. Foss. Antic, p. 59, Clinton Gr. gibbosum, Hah, 1852, Pal. N. Y., vol. 2, p. 13, Medina sandstone, lycus, Hall, 1861, Rep. of Pi gr. Wis., p. 45,Chazy and Black Riv. Gr. mummiforme, Whitfield, 1880, Ann. Rep. Geo. Sur. Wis., p. 58, and Geo. Wis., vo
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology