BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 79 



Ascoc'oras anticostiense Billings. 



Ascoceras newberryi Billings (part), Pal. I-'oys.. 1, Gcol. Suiv. Canada, 1865, p. 



163, fig. 118b (adv. sheets, 1862). 

 Ascoceras Anticostiense Billings, Cat. Sil. Foss. Anticosti, Cicol. Surv. ("anada, 



1865, p. 60 (loc. ref.). 



Gamachian (Ellis Bay): Gamache Bay, Auticosti. 



Ascoceras boreale Parks. 



Ascoceriis boreale Parks in Tyrrell, 22d Rep. Ontario Bur. Mines, 1913, p. 34. 

 Mohawkian or Richmond : Shamattawa RiA^er, Manitoba. 



Ascoceras canadense Billings. See Billingsites canadensis. 



Ascoceras costulatum ^\^liteavep. 



Ascoceras costulatum AVhiteaves, Canadian Rec. Sci., 6, 1895, p. 394; Pal. Foss., 



Geol. Surv. Canada, 3, pt. 3, 1897, p. 215, pi. 22, fig. 1. 

 Black River or Richmond: Lake Winnipeg, Canada. 



Ascoceras gibberosum Sardeson. 



Ascoceras gibberosum Sardeson, Bull. xMinnesota Acad. Nat. Sci., 4, 1896, p. 102, 



pi. 6, figs. 8-10. 

 Ozarkian (Oneota) : Dresbach, Minnesota. 



Ascoceras indianense Newell. 



Ascoceras Indianensis Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, p. 484, 



figs. 

 Niagaran: Delphi, Indiana. 



Ascoceras newberryi Billings. 



Ascoceras Newberryi Billings, Pal. Foss., 1, Geol. Surv. Canada, 1865, p. 163, 

 fig. 148a (adv. sheets, 1862); Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 



1866, pp. 23, 59 (loc. ref.).— Newell, Proc. Boston Soc. Nat. Hist., 23, 1888, 

 p. 484. 



Richmond (English Head and Charleton) and Ciamachian: English Head, etc., 



Anticosti. 

 Niagaran: Delphi, Indiana (Newell). 



Ascoceras newberryi Billings (part). See Ascoceras anticostiense. 



Ascoceras southwelli Worth en. 



Ascoceras southwelli Worthen, Geol. Surv. Illinois, 8, 1890, ]>. 151, ])1. 27, figs. 

 2, 2a. 

 Niagaran: Port Byron, Illinois. 



Ascoceras townsendi AVliitcaves. 



Ascoceras Townsendii Wliiteaves, Pal. Foss., Geol. Sui*v. Canada, 3, pt. 1, 1884, 



p. 41, pi. 6, figs. 4, 4a; pt. 2, 1895, p. 103. 

 Niagaran (Guelph): Durham, Ontario. 



ASCODICTYON Nicholson and Etheridgc, Jun. 



Genotype: A. stellatum Nicholson and Etheridge, Jun. 

 Aecodictyon Nicholson and Etheridge, Jun., Ann. Mag. Nat. Hist. 4th ser., 19, 

 1877, p. 463.— Vine, Quart. Jour. Geol. Soc. London, 37, 1881, p. 618; 38, 

 1882, p. 52; Rep. 53d Meeting Brit. Assoc. Adv. Sci., 1884, p. 185; Proc. 

 Yorkshire Geol. Polyt. Soc, 9, 1887, p. 183; 12, 1892, p. 86.— Miller, N. A. 

 Geol. Pal., 1889, p. 293.— Ulrich, Geol. Surv. Illinois, 8, 1890, p. 367.— 

 Simpson, 14th Rep. State Geol. New York for 1894, 1897, p. 603.— Nicklea 



