1272 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Tetranota inacra Ulrich and Scofield. 



Tetranota macra Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 879, pi. 



65, figs. 1, 2. 

 Black River (Platteville) : Minneapolis,' Minnesota. 

 Ilolotypc— Cut. No. 46013, U.S.N.M. 



Tetranota obsoleta Ulrich and Scofield. 



Tetranota obsoleta Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 880, 



pi. 65, figs. 19-23.— Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 164.— 



Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 613, fig. 819i-k.— Foerste, 



Jour. Cincinnati Soc. Nat. Hist., 21, 1914, p. 140. 

 Bucania obsoleta Miller, N. A. Geol. Pal., 1897, p. 766 (gen. ref.). 

 Black River: Minneapolis and St. Paul, Minnesota; Janesville, Wisconsin 



(Platteville); Chatfield and Cannon Falls, Minnesota (Decorah); Mercer 



County, Kentucky. 

 Trenton: Goodhue County, Minnesota; Kentucky; Baffin Land. 

 Eden: Cincinnati, Ohio, and vicinity. 

 Cotypes.— Cat. Nos. 46014, 46015, U.S.N.M. 



Tetranota sexcarinata Ulrich and Scofield. 



Tetranota sexcarinata Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, p. 878, 



pi. 65, figs. 3-9.— Grabau and Shimer, N. A. Index Fossils, 1, 1909, p. 613, 



fig. 819e-h-l. 

 Black River (Platteville): Minneapolis, Cannon Falls, etc., Minnesota; Beloit 



and Janesville, Wisconsin; Dixon, Illinois. 

 Stones River (Lebanon): Lebanon and Lavergne, Tennessee. 

 Trenton (Prosser) : Fillmore County, Minnesota. 

 Cotypes.— Cat. Nos. 46016-46018, U.S.N.M. 



Tetranota wisconsinensis (Whitfield). 



Bellerophon wisconsinensis Whitfield, Ann. Rep. Geol. Surv. Wisconsin, 1878, 



p. 76; Geol. Surv. Wisconsin, 4, 1882, p. 223, pi. 6, figs. 15, 16. 

 Tetranota wisconsinensis Ulrich and Scofield, Geol. Minnesota, 3, pt. 2, 1897, 



p. 881, pi. 65, figs. 26-29. 

 Black River (Platteville): Beloit and Janesville, Wisconsin; Minneapolis and 



St. Paul, Minnesota. 

 Plesiotype.—C&t. No. 46019, U.S.N.M. 



THALAMOCRINUS Miller and Gurley. Genotype: T. ovatus Miller and Gurley. 

 Thalamocrinus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 7, 1895, 

 p. 81.— Miller, N. A. Geol. Pal., 2d App., 1897, p. 754.— Bather, Treatise on 

 Zool. (Lankester), pt. 3, 1900, p. 204. 



Thalamocrinus cylindricus Miller and Gurley. 



Thalamocrinus cylindricus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 



7, 1895, p. 82,- pi. 5, figs. 32, 33.— Miller, N. A. Geol. Pal., 2d App., 1897, p. 



754, fig. 1401. 

 Niagaran (Brownsport): Decatur County, Tennessee. 



Thalamocrinus ovatus Miller and Gurley. 



Thalamocrinus ovatus Miller and Gurley, Bull. Illinois State Mus. Nat. Hist., 7, 



1895, p. 82, pi. 5, figs. 29-31.— Miller, N. A. Geol. Pal., 2d App., 1897, p. 754, 



fig. 1402. 

 Niagaran (Brownsport): Decatur County, Tennessee. 



