36 
PALAEONTOLOGY OF NEW YORK. 
Province of Ontario; T. Ohioensis, T. grandis and T. acuminata are known in 
the Niagara dolomites of Ohio, and T. acuminata from Port Byron, Illinois, but, 
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 
Lindstrom in association with T. Lindstmmi, on the islands of Gotland and 
Faro ; T. Wisbyensis, 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 IVB, PIGS. 13-24. 
1850. Lingula, Rouault. Bull. Soc. Geol. de France, 2nd ser., vol. vii, p. 128. 
1853. Obolus, Davidson. Introduction to British Fossil Braehiopoda, p. 58. 
1858. Obolus, Billings. Rept. Geological Survey Canada, p. 189. 
1859. Obolus, Salter. Murchison’s Siluria, Second Ed., p. 543. 
1860. Obolus, Lindstrom. Ofvers. af Kong. Vetenskaps-Akad. Forhandl., p. 375. 
1862. ( Conradia ), Hall, MS. See Davidson, Quart. Journ. Geol. Soc., vol. xxx, p. 159, footnote. 1874. 
1863. Lingula, Salter. Quarterly Journal Geological Society, vol. xx, p. 294, pi. xvii, figs. 2, 3, 6. 
1866. Lingula, Davidson. British Silurian Braehiopoda, p. 41, pi. i, figs. 21-26. 
1866. Obolus, Davidson. British Silurian Braehiopoda, p. 59. 
1868. Obolus,- Hall. Twentieth Rept. N. Y. State Cab. Nat. Hist., p. 368, and 1870, idem., Revised 
Edition, p. 375. 
1868. Obolus [ Trimerella ?], Meek and Worthen. Geol. Survey Illinois, vol. iii, p. 351, pi. v, fig. 7. 
1869. Lingula, Davidson. Quarterly Journal Geological Society, vol. xxvi, pi. iv, fig. 3, 
1871. Binobolus, Hall. Notes on some New or Imperfectly known Forms among- the Braehiopoda, p. 
4, March; in advance of Twenty-third Rept. N. Y. State Cab. Nat. Hist. 
1873. 
1871. Obolellina ( partim ), Billings. Canadian Naturalist, p. 222. December. 
1871. Trimerella (partim), Dall. American Journal of Conchology, vol. vii, pt. 2, p. 83. 
1872. Obolellina (partim), 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 and King. Rept. Brighton Meeting Brit. Association. 
1872. Dinobolus, Davidson 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 ; Palaeont., vol. ii, p. 130, pi. vii, figs. 3, 4. 
1875. Dinobolus, Nicholson. Palaeontology Province of Ontario, p. 18, fig. 6 a; p. 68, fig. 38. 
1879. Trematis, Barrande. 'Systeme Silur. BohSme, pi. 94, fig. vi; pi. 95, fig. x. 
1880. ' Dindbolus, Davidson. Geological Magazine, new ser., vol. vii, p. 340, pi. x, figs. 1-6. 
1881. Dinobolus, Davidson. Braehiopoda of the Budleigh-Salterton Pebble-bed, p. 365, pi. xl, figs. 
22, 23. 
1882. Dinobolus, Whitfield. * Geology of Wisconsin, vol. iv, p. 347, pi. xxvii, figs. 8-10. 
