. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 526 CRUSTACEA. [(. Fig. 951. — Aoidaspls anchomllH. Cephal- ic Hhield. inmqualis, Meek & Worthen, syn. for Pal- eeocaria typus. stirapsoni, Mtek & Worthen, 1865, Proc. Acad. Nat. Si», Mnrchison, 1839, Sil. Syst, p. 658. [Ety. akis, a point; axpis, shield.] Cephalic shield, semicircular, inarpn thickened and spinous, lateral anttlt-s produced in spines; glabella convex, narrow in front, not reachin
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. 526 CRUSTACEA. [(. Fig. 951. — Aoidaspls anchomllH. Cephal- ic Hhield. inmqualis, Meek & Worthen, syn. for Pal- eeocaria typus. stirapsoni, Mtek & Worthen, 1865, Proc. Acad. Nat. Si», Mnrchison, 1839, Sil. Syst, p. 658. [Ety. akis, a point; axpis, shield.] Cephalic shield, semicircular, inarpn thickened and spinous, lateral anttlt-s produced in spines; glabella convex, narrow in front, not reaching the mar- gin, two lobes on each side, and having a large spine projecting backward, eyes prominent; thorax with eight seg- ments; pleurH) wide, and terminating in spines; pygidium small, axis sliort, of two joints, sides depressed, one seg- mental furrow, long spine extending backward from the margin at each side, and smaller spines from the other parts of the margin. Type A. brighti. anchoralis, S. A. Mil- ler, 1875, Gin. Quar. Jour. Sci., vol. 2, p. 349, Hud. Riv. Gr. callicera, Hall, 1888, Pal. N. vol. 7, p. 69, Up. Held. Gr. ceralepta, Anthony, 1838, (Cera*, .epli- ala ceralepta,/ Am. Jour. Sci., vol. 34, p. 379. Not defined so as to be recognized, cincinnatiensis, Meek, 1873, Ohio Pal., vol. 1, p. 167, Hud. Riv. Gr. crosotus, Locke, 1843, Am. Jour. Sci., vol. 44, p. 347, and Ohio Pal., vol. 1, p. 165, Hud. Riv. Gr. The word is mis- spelled; it should be Fio. 992.—Acidas- crossota, pis anctioraliK. danai. Hall, 1862, Geo. Pygidium. Sur. Wis., p. 423, Niagara Gr. eriopi», see Terataspia eriopis. fimbiinta, Hall, 1879, Desc. New Spec. p- 20, and 11th Rep. Geo. and Nat. Hist. Ind., p. 334, Niagara Gr. grandis, see Terataspis grand in. halli, Shumurd, 1855, Geo. Sur. Mo., p. 200, Trenton Gr. hamata, Conrad, 1841, (Dicranurus ha- matus,) Ann. Rep. N. Y., p. 48, and Pal. N. Y., vol. 3, p. 371, Low. Held. Gr. horani, Billings, 1859, Rep. of Progr. Geo. Sur. C
Size: 1837px × 1360px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
