TYPE SPECIMENS OF PALEOZOIC FOSSILS 343 



TRIMERELLA BillingS 



Trimerella acuminata Billings 



2127 s^o. hypoplastotype Trimerella acuminata Billings 



Paleozoic fossils. 1865. 1 :i67. 



Hall & Clarke. Paleontology of New York. 1892. 

 v. 8, pt 1, pi. 4B, fig. 6. 



Niagaran Port Byron 111. 



Trimerella ohioensis Meek 



2128 &§jLL hypoplastotype Trimerella ohioensis Meek. 



American journal of science, ser. 3. 187 1. 1 :305. 



Hall & Clarke. Paleontology of New York. 1892. 

 v. 8, pt 1, pi. 4A,fig. 3. 



Niagaran Port Byron 111. 



2129 - § - i 2 1 - hypoplastotype Hall & Clarke. Paleontology of New 



York. 1892. v. 8, pt 1, pi. 4A, fig. 4. 



Niagaran Rising Sun O. 



2130 — 3 — hypotype Hall & Clarke. Paleontology of New York. 



1892. v. 8, pt 1, pi. 4A, fig. 8. 



Niagaran Ottawa county, O. 



triplecia Hall 



Triplecia extans Emmons (sp.) 



2 1 31 &&ga. hypotype Atrypa extans Emmons. Geology of 



New York; report on the 2d district. 1842. p. 395. 



Triplecia extans Hall & Clarke. Paleontology 

 of New York. 1892. v. 8, pt 1, pi. 11C, fig. 4. 



Trenton limestone Carlton island, Jefferson co. N. Y. 



J. M. Clarke purchase 



Triplecia spiriferoides McCoy (sp.) 



2132 ^V" 1 hypotype Leptaena (Strophomena) spirifer- 



oides McCoy. Annals and magazine of natural history, 

 ser. 2. 8 : 402. 



Triplecia spiriferoides Hall & Clarke. Paleon- 

 tology of New York. 1892. v. 8, pti,pl. xiC, fig. 10, 11. 



( laradoc sandstone Wales 



^ Murchison collection 



T rip les i a late r alis see Syntrophia lateralis 



T rip lesia put ill us see Mimulus waldronensis 



