. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. —AMP.] CRUSTACEA. 52T Rep. Hayden's and Prospect Mount- 1801, Am. Jour, vol. 32, p. 218, lOtlj Rep. N. Y. 170, Potsdam (ir. 1. Foss., vol. 1, p. il. Fobs., vol. 1, p. 74, Rpp. Invert. Sur. W. 100th TM<onic. til R^p. N. Y., St. i, Potsdam Gr. Fio. Oo4. A|;noistu8 rex. Dobilis, Ford, 1872, Am. Jour. Sci., 3d ger., vol. 3, p. 421, Up. Taconic. obtusilobns, Matthew, 1885, Trans. Roy. Soc. Can., p.


. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. —AMP.] CRUSTACEA. 52T Rep. Hayden's and Prospect Mount- 1801, Am. Jour, vol. 32, p. 218, lOtlj Rep. N. Y. 170, Potsdam (ir. 1. Foss., vol. 1, p. il. Fobs., vol. 1, p. 74, Rpp. Invert. Sur. W. 100th TM<onic. til R^p. N. Y., St. i, Potsdam Gr. Fio. Oo4. A|;noistu8 rex. Dobilis, Ford, 1872, Am. Jour. Sci., 3d ger., vol. 3, p. 421, Up. Taconic. obtusilobns, Matthew, 1885, Trans. Roy. Soc. Can., p. 72, St. John Gr. orion, Billings, 1860, Can. Nat. and Geo., vol. 5. p. 301, and Pal. Fobs., vol. 1, p. 397, Up. Taconic. ?parill8, Hall, 1863, 16th Rep. N. Y. St. Mus. Nat. Hist., p. 179, Potsdam Gr. partitas, Matthew, 1885, Trans. Roy. Soc. Can., p. 68, 8t. John Gr. prolongua. Hall & Whittield, 1877, U. 8. Geo. Expl. 40th parallel, p. 230, Pros- pect Mountain Gr., Up. Taconic. regulus, Matthew, 1885, Trans. Roy. Soc. Can., p. 67, St. John Gr. rex, Barrande. Probably not an American species, but illustrative of the genus, richmondenfiis, Walcott, 1884, Monogr. U. 8. Geo. Sur., vol. 8, p. 24, Prospect Mountain Gr., Up. Taconic. seclusns, Walcott, 1884, Mon- ogr. U. S. G« o. Sur., vol. 8, p. 25, Prospect Mountain Gr., Up. Taconic. Bimilia, Uartt, 1868, Acad. (leol., p. 656, St. John Gr. tessella, Matthew, 1885, Trans. Roy. Soc. Can., p. 71, St. John Gr. tumidofuf. Hall & Whitfield, 1877, U. 8. Geo. Expl. 40th parallel, vol. 4, p. 231, Up. Taconic. umbo, Matthew, 1885, Trans. Roy. Soc. Can., p. 71, St. John Gr. vir, Matthew, 1885, Trans. Roy. Soc. Can., p. 69, St. John Gr. vir var. concinnus, Matthew, 1885, Trans. Roy. Soc. Can., p. 70, St. John Gr. AanAULUs, Hawle & Corda, 1847, Prodrom. einer Monographie der bomischen Trilobiten, p. 142. [Ety. agraulos, dwelU ing 'n the fields.] Body elongate- ovat ; cephalic shield large, semicir- cular to lunate, with a wide


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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology