SCHUCHERT.] 



INDEX AND BIBLIOGRAPHY. 309 



Platystrophia acutilirata (Conrad)— Continued. 



Orthis biforata var. acutilirata White, Second Anu. Rep. Indiana Bureau of 



Statistics and Geol., 1880, p. 487, pi. 2, tigs. 5-9;— Tenth Rep. State Geol. 



Indiana, 1881, p. 119, pi. 2, tigs. 5-9. 

 Platystrophia acutilirata Hall and Clarke, Pal. New York, VIII, Pt. 1, 1892, p. 223. 

 Loc. Richmond, Indiana; Oxford, Ohio; Louisiana, Missouri (Keyes). 



Platystrophia biforata (Sclilotheim). Cliazy-Niagara (Ord. and SO.). 



Terebratulites biforatus Schlotheim, Petrefactenkuude, 1820, p. 205. 



Spirifer sheppardi Castelnau, Essai Syst. Sil. I'Ani^rique Septentrionale, 1843, 

 p. 42, pi. 14, tig. 15. 



Delthyris brachynota Hall, Geol. New York ; Rep. Fourth Dist., 1843, p. 70, fig. 6. 



Orthis and Delthyris Owen, Geol. Espl. Iowa, Wisconsin, Illinois, 1844, pi. 15, 

 figs. 3, 7. 



Delthyris lynx Hall (partim; non Eichwald), Pal. New York, I, 1847, p. 133, pi. 

 32D, tig. 1. 



Spirifer biforata var. lynx Hall, Ibidem, II, 1852, p. 65, pi. 22, tig. 1. 



Orthis biforatus Billings, Cauadian Nat. Geol., I, 1856, p. 206, tigs. 6-10.— Nichol- 

 son and Hinde, Canadian Jour., XIV, 1874, p. 158.— White, Rep. U. S. Geogr. 

 Geol. Survey west 100th Meridian, IV, 1874, p. 74, pi. 4, tig. 9.— Nettelroth, 

 Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889, p. 35, pi. 29, 

 figs. 18-29.— Foerste, Proc. Boston Soc. Nat. Hist., XXIV, 1890, p. 312. 



Orthis lynx Billings, Geol. Canada, 1863, p. 167, fig. 149.— Miller (partim), Cin- 

 cinnati Quart. .Tour. Sci., II, 1875, p. 25. 



Platystrophia reguluris Shaler, Bull. Mus. Comp. Zool., 4, 1865, p. 67. 



Orthis (Platystrophia) biforata Meek, Pal. Ohio, I, 1873, p. 112.— Foerste, Geol. 

 Ohio, VII, 1895, p. 579, pi. 25, figs. 7, 8. 



Orthis (Platystrophia) biforata var. lynx Hall, Second Anu. Rep. N. Y. State 

 Geologist, 1883, pi. 35, figs. 11-14 (non figs. 9, 10, 15 of pi. 35 and fig. 30, pi. 

 34=P. biforata lynx). 



Orthis biforata var. lynx forma reversata and daytonensis Foerste, Bull. Deuison 

 Univ., I, 1885, pp. 81, 82, pi. 13, figs. 7, 8. 



Platystrophia lynx Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 202, 

 223, pi. 5B, fig. 10.— Keyes", Geol. Survey Missouri, V, 1895, p. 64, pi. 39, fig. 5. 



Platystrophia biforata Wiuchell and Schuchert, Minnesota Geol. Survey, III, 

 1893, p. 455, pi. 33, figs. 51-54.— Whiteaves, Pal. Foss., Ill, Pt. Ill, 1897, 

 p. 177. 



Loc. Throughout the horizons mentioned above in North America; also in 

 England, Scotland, Ireland, Gotland, Scandinavia, Oeland, and Russia. 



Platystrophia crassa James. Lorraine (Ord.). 



Orthis (Platystrophia) dentata?? Meek (non Pander), Pal. Ohio, I, 1873, p. 117, 

 pi. 10, fig. 3. 



Orthis (Platystrophia) crassa James, Cincinnati Quart. Jour. Sci., I, 1874, p. 20. 



Orthis dentata Miller, Ibidem, II, 1875, p. 27. 



Orthis centrosa Jliller, North American Geol. Pal., 1889, p. 356. 



Platystrophia crassa Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 223. 



Platystrophia liiforata var. crassa Winchell and Schuchert, Geol. Survey Min- 

 nesota, III, 1893, p. 458, pi. 33, figs. 55, 56.— Whiteaves, Pal. Foss., Ill, Pt. 

 Ill, 1897, p. 178. 



Loc. Cincinnati, Ohio; Spring Valley, Minnesota; Lake Winnipeg, Manitoba. 



Platystrophia laticosta Meek. Lorraine (Ord.). 



Orthis (Platystrophia) laticosta (James) Meek, Pal. Ohio, I, 1873, p. 116, pi. 10, 



fig. 4. 

 Orthis (Platystrophia) cypha James, Cincinnati Quart. Jour. Sci., I, 1874, p. 20. 



