974 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



PHYLLODICTYA -Continued. 



14th Ann. Rep. State Geol. New York for 1894, 1897, p. 531. Nickles and 

 Bassler, Bull. U. S. Geol. Surv., 173, 1900, p. 49. Grabau and Shimer, N. A. 

 Index Fossils, 1, 1907, p. 159. Bassler, Bull. U. S. Nat. Mus., 77, 1911, 

 p. 135; Zittel-Eastman Textb. Pal., 1913, p. 346. 



Phyllodictya frondosa Ulrich. 



Phyllodictya frondosa Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 174, 

 pi. 8, figs. 11-llb; Geol. Minnesota, 3, 1893, p. 142. Simpson, 14th Ann. 

 Rep. State Geol. New York for 1894, 1897, fig. 88 (p. 531). Bassler, Bull. 

 Virginia Geol. Surv., 2a, 1909, pi. 23, figs. 6-8. 



Black River (Lowville): High Bridge and Frankfort, Kentucky; Central Tennes- 

 see; Southwestern Virginia. 



Cotypes and plesiotypesGat. Nos. 43705, 43598, U.S.N.M. 



Phyllodictya varia Ulrich. 



Phyllodictya varia Ulrich, Geol. Minnesota, 3, 1893, p. 144, pi. 14, figs. 1-8. 



Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 159, fig. 208 j. Bassler, 



Bull. U. S. Nat. Mus., 77, 1911, pp. 136, 137, fig. 60. 

 Black River (Decorah) : Minneapolis and Cannon Falls Minnesota; Lake Nipissing, 



Ontario. 



Middle Ordovician (Wassalem): Uxnorm, Esthonia, .Russia. 

 Cotypes Cat. No. 43597, U.S.N.M. 



PHYLLOGRAPSUS Nicholson. See Phyllograptus Hall. 



PHYLLOGRAPTUS Hall. Genotype: P. typus Hall. 



Phyllograptus Hall, Geol. Surv. Canada, Rep. Progr. for 1857, 1858, pp. 135, 137; 

 Canadian Nat. Geol., 3, 1858, p. 168-170; Pal. New York, 3, 1859, p. 504; 

 12th Rep. New York State Cab. Nat. Hist., 1859, p. 52; Geol. Surv. Canada, 

 dec. 2, 1865, p. 118, figs. 1-3. Carruthers, Geol. Mag., 5, 1868, p. 73, 132. 

 Hall, 20th Rep. New York State Cab. Nat. Hist., 1868, p. 217, rev. ed., p. 

 252. Zittel, Handb. Pal., 1, 1879, p. 301. Tullberg, Sveriges Geol. 

 Unders., ser. C, No. 55, 1883, p. 12. Spencer, Bull. Mus. Univ. State Mis- 

 souri, 1, 1884, p. 15; Trans. Acad. Sci. St. Louis, 4, 1884, p. 565. Miller, 

 N. A. Geol. Pal., 1889, p. 200. Holm, Geol. Mag., dec. 4, 2, 1895, pp. 

 433, 487; Geol. Foren. Stockholm Forhandl., 17, 1895, p. 343. Wiman, 

 Nat. Sci., 9, 1896, p. 191. Koken, Die Leitfossilien, Leipzig, 1896, p. 

 328. Walther, Zeits. d. d. geol. Gesell., 49, 1897, p. 252. Roemer and 

 Freeh, Leth. geog., 1 Theil, Leth. Pal., 1, 3 Lief, 1897, p. 603. Ruede- 

 mann, Amer. Nat., 32, 1898, p. 5. Zittel-Eastman Textb. Pal., 1, 1900, 

 p. 119. Elles and Wood, Mon. British Grapt., Pal. Soc., 1902, p. 98. Ruede- 

 mann, Mem. New York State Mus., 7, pt. 1, 1904, pp. 703-706. Grabau and 

 Shinier, N. A. Index Fossils, 1, 1906, p. 29. Ruedemann, Zittel-Eastman 

 Textb. Pal., 2d ed.", 1913, p. 129. 



Phyllograpsus Nicholson, Quart. Jour. Geol. Soc. London, 24, 1868, p. 9, 132; 

 Mon. British Grapt., 1872, p. 124. 



Phyllograptus angustifolius Hall. 



Phyllograptus angustifolius Hall, Geol. Surv. Canada, Rep. for 1857, 1858, p. 139; 

 Canadian Nat. Geol., 3, 1858, p. 172. Salter, Quart. Jour. Geol. Soc. London, 

 19, 1863, p. 137, fig. 7a, b. Billings, Geol. Canada, Geol. Surv. Canada, 1863, 

 p. 228, fig. 237. Hall, Geol. Surv. Canada, dec. 2, 1865, p. 125, pi. 16, figs. 

 17-21; p. 16, fig. 22; 20th Rep. New York State Cab. Nat. Hist., 1868, p. 183, fig. 

 23; rev. ed., p. 213, fig. 23; p. 224. Nicholson, Quart. Jour. Geol. Soc., 24, 

 1868, p. 132. Linnarsson, Sver. Geol. TJnd., Afh. och upps., ser. C, no. 31, 



