. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fig. 378.—Ottawiicriiiua typus. basal as in I)r ndrocrinuN, ane O. tyi 'is. typus, W. R. BillinKH, 1H»7, Ottawa Nat. Club, vol. 1, p. 49, Trenton Gr. Paimivcrinih, Billings, , Rem., Decade 1, p. 22. [ pachijB, thick ; krinoti, lily.] Galy x SHUcer-shaped; ba-suls I x5; ra- dials 1x5. Type P. crassi- basalis. crapsibasalis, Billings, 1H59, Can. Org, Rem., Decade 4, |). 22, Chazy Gr. Pach ji lo ,'r
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fig. 378.—Ottawiicriiiua typus. basal as in I)r ndrocrinuN, ane O. tyi 'is. typus, W. R. BillinKH, 1H»7, Ottawa Nat. Club, vol. 1, p. 49, Trenton Gr. Paimivcrinih, Billings, , Rem., Decade 1, p. 22. [ pachijB, thick ; krinoti, lily.] Galy x SHUcer-shaped; ba-suls I x5; ra- dials 1x5. Type P. crassi- basalis. crapsibasalis, Billings, 1H59, Can. Org, Rem., Decade 4, |). 22, Chazy Gr. Pach ji lo ,'rinux, VVachsmuth & Springer, 1879, Proc. Acad. Nat. Sci. Phil., p. 115. Proposed for a of Poteriocrlnu^ of lewH than generic! importance, but lalii the tiime aiitli(»rs re- ferred their ype to Woodo- crinus. Pal^.a8tek, Hall, 1852, Pal. N. Y., vol, 2, p. 247. [Ety. palaius, ancient; outer, ntar.] Stellate, disk small; two ranges of plates .n each ambulacra! groove, and two on either side, aclambulacral and marginal; four ranges of pores in each groove; oral plates in pairs at the base of the rays; dorsal plates polygonal, sometimes spinous, madreporic tubercle. Type P. niaga- rensis. antiqua, Locke, 1840, (Asterias antiqua,) Proc. Acad. Nat. Sci. Phil., vol. :{, p. 38, Hud. Riv. Gr. Too poorly defined for determination, antiquus, Troost, 1835, (Asterias antiqua,) Trans. Geo. 8oc. Penn., vol. 1, p. 232, Hud. Riv. Gr. clarkanus, S. A. Miller, 1880, Jour. Gin. Soc. Nat. Hist., vol. 3, p. 230, Hud. Riv. Gr. clarki, S. A. Miller, Jour. Cin. Soc. Nat. Hist., vol. 1, p. 102, see Pala- aster clarkanus. crawf ords- villensis, S. A. Mil- ler, 1880, Jour. Cin. Soc. Nat. Hist, vol. 2, p. 256, Keokuk Gr. dubius, Miller & Dyer, 1878, Cont. to Pal., No. 2, p. 256, Utica Slate Gr. dyeri, Meek, 1872, Am. Jour. Sci., 3d se- ries, vol. 3, p. 257, and Ohio Pal., vol. 1, p. 58, Hud. Riv. Gr. eucharis, Hall. 1868, 20th Rep. N. Y. St. Mus. Nat. Hist., p. 330, Ham. KiG. 3
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