BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1295 



Tripteroceras hastatum (Billings). 



Orthoceras hastatum Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, 



p. 333. 



Tripteroceras hastatum Hyatt, Proc. Boston Soc. Nat. Sci., 22, 1884, p. 287. 

 Black River (Leray): Pauquettes Rapids, Ottawa River, Canada. 



Tripteroceras Iambi (Whiteaves). 



Gonioceras Iambi Whiteaves, Trans. Royal Soc. Canada, 9, sec. 4, 1891, p. 86, 



pi. 11, figs. la-b. 

 Triptoceras Iambi Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 793, pi. 56, figs. 1 



and 2. 

 Tripteroceras lambii Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 3, 1897, p. 



213. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 105, fig. 1332. 

 Black River or Richmond: East Selkirk, Manitoba; Stewartville, Minnesota 



(?Trenton). 



Tripteroceras oweni (Clarke). 



Triptoceras oweni Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 792, pi. 56, figs. 5-7. 

 Tripteroceras oweni Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 104, fig. 



1330. 

 Black River (Platteville) : Cannon Falls, Minnesota. 



Tripteroceras planoconvexum (Hall). 



Orthoceras planoconvexum Hall, Rep. Supt. Geol. Surv. Wisconsin, 1861, p. 47. 



Whitfield, Geol. Wisconsin, 4, 1882, p. 228, pi. 7, fig. 14; Mem. Amer. Nat. 



Hist., 1, pt. 2, 1895, p. 72, pi. 8, figs. 24, 25; pi. 9, figs. 1, 2. 

 Triptoceras planoconvexum Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 791, pi. 56> 



fig. 3; pi. 57, fig. 1. 

 Tripteroceras planoconvexum Grabau and Shimer, N. A. Index Fossils, 2, 1910, 



p. 103, fig. 1329. 

 Black River: Beloit and Mineral Point, Wisconsin; Cannon Falls, Minnesota 



Platteville); Lincoln County, Missouri (Auburn). 

 Trenton (Prosser) : Hader and Wykoff, Minnesota. 



Tripteroceras planodorsatum (Whitfield). 



Cyrtoceras planodorsatum Whitfield, Geol. Wisconsin, 4, 1882, p. 231, pi. 7, figs. 



10-12. Chamberlin, ibid., 1883, p. 159, fig. 

 Triptoceras planodorsatum Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 792, pi. 56, 



fi . 4; pi. 57, figs. 2-4. 

 Tripteroceras planodorsatum Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 



104, fig. 1331. 



Black River (Platteville): Near Beloit, Wisconsin; Minneapolis, Minnesota. 

 Plesiotype Ca't. No. 46529, U.S.N.M. 



TRIPTEROCERAS SEMIPLANATUM Whiteaves. See Jovellania semiplanata. 



Tripteroceras servile (Billings). 



Orthoceras servile Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 252. 

 Triptoceras servile Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 793 (gen. ref .). 

 Chazyan (Quebec L) : Point Rich, Newfoundland. 



Tripteroceras xiphias (Billings). 



Orthoceras xiphias Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, 

 p. 318; Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 22 (loc. ref.). 

 Triptoceras xiphias Clarke, Geol. Minnesota, 3, pt. 2, 1897, p. 793 (gen. ref.). 

 Trenton: Ottawa, Ontario. 

 Richmond (English Head) : Cliffs east of English Head, Anticosti. 



