1046 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Protaxocrinus laevis (Billings). 



Lecanocrinus lsevis Billings, Geol. Surv. Canada, Rep. Progr. for 1853-1856, 



1857, p. 278; Geol. Surv. Canada, dec. 4, 1859, p. 47, pi. 4, fig. 3a. 

 Taxocrinus lsevis Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 



1886, p. 68 (Rev. Pal., pt. 3, p. 144). 

 Protaxocrinus laevis Springer, Geol. Surv. Canada, Mem. 15P, 1911, p. 11, pi. 3, 



figs. 10, 11; Mono. Crin. Flex., Smith. Inst, (in press). 

 Trenton (Curdsville) : Ottawa and Kirkfield, Ontario. 



Protaxocrinus robustus Springer. 



Protaxocrinus robustus Springer, Mono. Crin. Flex., Smith. Inst, (in press). 

 Niagaran (Brownsport) : Decatur County, Tennessee. 



Protaxocrinus virginiensis Springer. 



Protaxocrinus virginiensis Springer, Mono. Crin. Flex., Smith. Inst, (in press). 

 Helderbergian (Keyser): Keyser, West Virginia. 



Proterocameroceras Ruedemann. See Cameroceras Conrad. 



Proteropiloceras Ruedemann. See Piloceras Salter. 



PROTICHNITES Owen. . Genotype: P. septemnotatus Owen. 



Protichnites Owen, Quart. Jour. Geol. Soc. London, 8, 1852, p. 214. — Billings, 

 Canadian Nat. Geol., 1, 1857, pp. 35-39. — Dawson, Canadian Nat. Geol., 7, 

 1862, pp. 271-277.— Chapman, Expos. Minerals Geol. Canada, 1864, pp. 159, 

 160.— Billings, Quart. Jour. Geol. Soc. London, 26, 1870, pp. 484-485.— 

 Chapman, Canadian Jour. Sci. Lit. Hist., n. s., 15, 1877, pp. 486-490. — 

 Dawson, Quart. Jour. Geol. Soc. London, 46, 1890, pp. 599-601, figs. 4 and 5a. — 

 Packard, Proc. Amer. Acad. Arts Sci. Boston, 36, 1900, pp. 63-71.— Walcott, 

 Smiths. Misc. Coll., 57, 1912, p. 275. 



Protichnites alternans Owen. 



Protichnites alternans Owen, Quart. Jour. Geol. Soc. London, 8, 1852, pp. 214-217, 

 pi. 9. — Logan, Geol. Canada, 1863, p. 104, fig. 13. — Lesley, Geol. Surv. 

 Pennsylvania, Rep. P 4, 1889, p. 775, fig. 

 Upper Cambrian or Ozarkian (Potsdam): Near Beauharnois, Quebec. 



Protichnites latus Owen. 



Protichnites latus Owen, Quart. Jour. Geol. Soc. London, 8, 1852, p. 218, pi. 11. 

 Upper Cambrian or Ozarkian (Potsdam) : Near Beauharnois, Quebec. 



Protichnites lineatus Owen. 



Protichnites lineatus Owen, Quart. Jour. Geol. Soc. London, 8, 1852, p. 220, pi. 

 13 and pi. 8A, 3.— Billings, Geol. Canada, Geol. Surv. Canada, 1863, p. 104, 

 fig. — Lesley, Rep. Geol. Surv. Pennsylvania, P 4, 1889, p. 776, figs. 



Upper Cambrian or Ozarkian (Potsdam): Near Beauharnois, Quebec. 



Protichnites logananus Marsh. 



Protichnites logananus Marsh, Amer. Jour. Sci., 2d. ser., 48, 1869, pp. 46-49; 



Proc. Amer. Assoc. Adv. Sci., 17, 1869, pp. 322-324.— Walcott, Smiths. Misc. 



Coll., 57, 1912, p. 279, pi. 48-49. 

 Upper Cambrian or Ozarkian (Potsdam): Essex County, New York. 

 Plesiotype.— Cat. No. 58402, U.S.N.M. 



Protichnites multinotatus Owen. 



Protichnites multinotatus Owen, Quart. Jour. Geol. Soc. London, 8, 1852, pp. 



214-217, pi. 9.— Logan, Geol. Canada, 1863, p. 104, fig. 14.— Lesley, Geol. 



Surv. Pennsylvania, Rep. P 4, 1889, p. 776, figs. 

 Upper Cambrian or Ozarkian (Potsdam) : Near Beauharnois, Quebec. 



