36 FALjEOM'OLOGY OF NEW YORK. 



Province of Ontario; T. Ohiocnsis, T. grandis and T. acuminata are known in 

 the Niagara dolomites of Ohio, and T. acuminata from Port Byron, Illinois, hut, 

 strangely enough, we have no knowledge of the occurrence of any species of the 

 genus in association with the great numbers of Monomerella and Dinobolus 

 in the rocks of the same age in Wisconsin ; T. acuminata has been found by 

 LiNUSTROM in association with T. Lindsirmmi, on the islands of Gotland and 

 Faro ; T. Wisbymsis, Davidson and King, is a little known species from the 

 former island. The age of the Swedish specimens is that of the Aymestry and 

 Wenlock limestone of Great Britain. 



Genus DINOBOLUS, Hall. 1871. 



PLATE IV B, FIGS. 13-24. 



18.50. Lingula, RoDAnLT. Bull. Soc. Gdol. de France, 2nd ser., vol. vii, ji. 128. 



1853. OboluJ), Davidson. Intioduclion to Biitish Fossil Biacbiopoda, p. 58. 



1858. Oholus, Billings. Rept. Geolog^ical Survey Canada, p. 189. 



1859. Uboliis, Salter. Murchison's Silui-ia, Second Ed., p. 543. 



ISljO. Oboljts, LiNDSTRoM. Ofvere. af Kong. Vetenskaps-Akail. Forhandl., p. 375. 



1862. {Conraclia). Hall, MS. See Davidson, Quart. Joura. Geol. Soc, vol. xxx, i>. 159, footnote. 1874. 



1863. Lhigida, Saltbr. Quarterly Journal Geological Society, vol. xx, p. -94, pi. xvii, figs. 2, 3, 6. 

 1866. Lingula, Davidson. British Silurian Br.aohiopoda, p. 41, pi. i, figs. 21-26. 



1866. Obulu.1, Davidson. British Silurian Brachiopoda, p. 59. 



1868. Obohis, Hall. Twentieth Rept. N. Y. State Cab. Nat. Hist., p. 368, and 1870, idem.. Revised 

 Edition, p. 375. 



1868. Oboltui [Trimerellaf], Mbbk and Worthen. Geol. Survey Illinois, vol. iii, p. 351, pi. v, fig. 7. 



1869. Lingula, Davidson. Quarterly Journal Geological Society, vol. xxvi, jil. iv, fig. 3, 



1871. DiTiobolus, Hall. Notes on some New oi- Imperfectly known Forms among the Brachiopoda, p. 



4, March ; in advance of Twenty-third Rept. N. Y. State Cab. Nat. Hist. 



1873. 

 1871. Obnlelliiui (partim), 'BihUUGS. Canadian Naturalist, p. 222. December. 



1871. Trimerella (priHim). Dall. American Journal of Conchology, vol. vii, jit. 2, p. 83. 



1872. Obolellina (parlim), Billings. Canad. Nat., p. 330, Dec. : Amer. Journ. Sci., vol. iii, p. 359. 

 1872. (Conradia), Hall. American Journal of Science, Third Ser., vol. iv, p. 107 ; and, 1873. Twenty- 

 third Rept. N. Y. State Cab. Nat. Hist., p. 250. 



1872. Dinobolus, Davidson an<l Kino. Rept. Brighton Meeting Brit. Association. 



1872. Dinobobui,"D.K\'WSOS and King. Geol. Magazine, vol. ix ; and Ann. and Mag. Nat. Hist., vol. x. 



1874. Dinobolus, Davidson and King. Quart. Journ. Geological Society, vol. xxx, p. 159. 



1875. Dinobolus, Hall and Whitfield. Geol. Surv. Ohio ; Palaont., vol. ii, p. 130, pi. vii, figs. 3, 4. 

 1875. Dinobolus, Nicholson. Palseoulology Province of Ontario, p. 18, fig. 6a; p. 68, fig. 38. 



1879. Tretnatis, Barrande. Systftme Silur. Boh6me, pi. 94, fig. vi ; pi. 95, fig. x. 



1880. Dinobolus. Davidson. Geological Magazine, now ser., vol. vii, p. 340, pi. x, figs. 1-6. 



1881. Dinobolus, X>KviY)SO}i. Brachiopovla of the Budleigh-Salterton Pebble-bed, p. 365, jil. xl, figs. 



22, 23. 



1882. Dinobolus, Whitkikld. Geology of Wi3con.sin, vol. iv, p. 347, pi. xxvii, figs. 8-10. 



