BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 79 



Ascoceras auticostiense Billings. 



Ascoceras newberryi Billings (part), Pal. Foss., 1, (iool. Snrv. Canada, 1865, p. 



163, fig. 148b (adv. sheets, 1862). 

 Ascoceras Anticostiense Billings, Oat. Sil. Foss. Anticosti, Geol. Surv. Canada, 



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



Gamachian (Ellis Bay): Gamache Bay, Anticosti. 



Ascoceras boreale Parks. 



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

 Mohawkian or Richmond : Shamattawa River, Manitoba. 



ASCOCERAS CANADENSE Billings. See Billingsites canadensis. 



Ascoceras costulatum Whiteaves. 



Ascoceras costulatum Whiteaves, Canadian Rec. Sci., 6, 1895, p. 394; Pal. Foes., 



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. Minnesota 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. 



Aecoceras 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 Gamachian: English Head, etc., 



Anticosti. 

 Niagaran: Delphi, Indiana (Newell). 



ASCOCERAS NEWBERRYI Billings (part). See Ascoceras auticostiense. 



Ascoceras sonthwelli Worthen. 



Ascoceras southwelli Worthen, Geol. Surv. Illinois, 8, 1890, p. 151, pi. 27, figs. 



2, 2a. 

 Niagaran: Port Byron, Illinois. 



Ascoceras townsendi AVhiteaves. 



Aecoceras Townsendii Whiteaves, Pal. Foss., Geol. Surv. Canada, 3, pt. 1, 1884, 



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

 Niagaran (Guelph) : Durham, Ontario. 



ASCODICTYON Nicholson and Etheridge, Jun. 



Genotype: A. stellatum Nicholson and Etheridge, Jun. 



Ascodictyon 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. Sun-. Illinois, 8, 1890, p. 367.- 

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



