726 



NORTH AMERICAN INDEX FOSSILS. 



ican species. Am. Geol. ii: 99-109, 

 figs. [Tenn., eastern Canada and Vt.]. 



1893 Ulrich, E. 0. New and little 

 known Lamellibranchiata from the 

 lower Silurian rocks of Ohio and ad- 

 jacent states. Ohio Geol. Surv. 7: 

 627-693. 



1894 Miller, S. A., and Faber, C. 

 New species of fossils from the Hud- 

 son River group. Cin. Soc. Nat. 

 Hist. Jour. 17: 22-23, plate. 



1894 Miller, S. A. Description of 

 some Cincinnati fossils [Hudson 

 River group]. Ibid., 137-158. 



1896 Harper, G. W., and Bassler, R. S. 

 Catalogue of the fossils of the Tren- 

 ton and Cincinnati periods occurring 

 in the vicinity of Cincinnati, Ohio. 

 34 pp. Cincinnati, Ohio. 



1892-1897 James, J. F. Manual of 

 the paleontology of the Cincinnati 

 group. Ibid. 14 : 45-72, 149-163 115: 

 88-100, 144-159; 16: 178-208; 18: 

 67-88, 1 15-140; 19: 99-118. 



1901 Cumings, E. R. Notes on the 

 Ordovician rocks of southern In- 

 diana. Ind. Acad. Sci. Proc. for 

 1900, pp. 200-215. 



1901 A section of the upper 



Ordovician at Vevay, Indiana. Am. 

 Geol. 28: 361-380, plates. 



1902 ■ A revision of the bryo- 



zoan genera Dekayia, Dekayella and 

 Heterotrypa of the Cincinnati group. 

 Ibid. 29: 197-218, plates. 



1902 Nickles, J. M. The geology of 

 Cincinnati [including many lists of 

 fossils]. Cin. Soc. Nat. Hist. Jour. 

 20 : 49-100. 



1902 Description of a new bry- 



ozoan, " Homotrypa bassleri," n. sp., 

 from the Warren beds of the Lor- 

 raine group. Ibid. 20: 103-105, figs. 



1903 The Richmond group in 



Ohio and Indiana and its subdivisions, 

 with a note on the genus Stropho- 

 mena. Am. Geol. 32: 202-218. 



1903 Bassler, R. S. The structural 

 features of the bryozoan genus Ho- 

 motrypa, with descriptions of species 



from the Cincinnati group. U. S. 

 Nat. Mus. Proc. 26: 565-591, plates. 

 1903 Foerste, A. F. The Cincinnati 

 group in western Tennessee between 

 the Tennessee River and the central 

 basin. Jour. Geol. 11: 29-45. 



1903 The Richmond group along 



the western side of the Cincinnati 

 anticline in Indiana and Kentucky. 

 Am. Geol. 31 : 333-3^^, plates. 



1904 The Ordovician-Silurian 



contact in the Ripley Island area of 

 southern Indiana, with notes on the 

 age of the Cincinnati geanticline. 

 A. J. S. (4), 18: 321-342. 



1904 Variations in thickness of 



the subdivisions of the Ordovician of 

 Indiana, with notes on the range of 

 certain fossils. Am. Geol. 34 : 87- 

 102, plate, 1905. 



1905 Notes on the distribution 



of brachiopoda in the Arnheim and 

 Waynesville beds. Ibid. 36 : 244-250. 



1905 Nickles, J. M. The upper Ordo- 

 vicic rocks of Kentucky and their 

 bryozoa. Ky. Geol. Surv. Bull. 5, 64 

 pp., plates. 



1906 Bassler, R. S. A study of the 

 James types of Ordovician and Silu- 

 rian bryozoa. U. S. Nat. Mus. Proc. 

 30 : 1-66, plates. 



1908 Cumings, E. R. The stratigraphy 

 and paleontology of the Ordovician 

 rocks of Indiana. Ind. Geol. and 

 Nat. Res., Ann. Rept. 32 [for 1907], 

 605-1 189, plates. 



1909 Foerste, A. F. Preliminary notes 

 on Cincinnatian fossils. Sci. Lab. 

 Denison Univ. Bull. 14: 209-230, 

 plates. 



Mississippi Valley (Western). 



(Michigan, Wisconsin, Minnesota, Iowa, 



Missouri, Oklahoma, Texas.) 

 1892 Gurley, R. R. The geologic age 



of the graptolite shales of Arkansas. 



Ark. Geol. Surv., Ann. Rept. for 1890, 



vol. 3 : 401-404. 

 1892 New species of graptolites. 



Ibid., pp. 416-418. 



