TYPE SPECIMENS OF PALEOZOIC FOSSILS 



/I 



gilbertsocrinus Phillips 

 Gilbertsocrinus spinigerus Hall (sp.) 



416 type Trematocrinus spinigerus Hall. 15th 



annual report of the New York state cabinet of natural 

 history. 1862. p. 128. 



Hamilton shales Vincent N. Y. 



C. A. White and C. Van Deloo, coll. i860 



417 type Gilbertsocrinus (Trematocrinus) 



spinigerus Hall. New York state museum of nat- 

 ural history bulletin 1. 1872. pi. 1, fig. 9. 1 



Hamilton shales Vincent N. Y. 



C. A. White and C. Van Deloo, coll. i860 



ichthyocrinus Conrad 

 Ichthyocrinus subangularis Hall 



418 hypotype Ichthyocrinus subangularis Hall. 



Transactions of the Albany institute. 1863. 4:7. 



Hall, nth annual report of the Indiana state geologist. 

 1882. pi. 15, fig. 12. 

 Niagaran Waldron Ind. 



C. D. Walcott and C. Van Deloo, 1878 



419 4? 2 B0 hypotype Hall. 1 1 th annual report of the Indiana state 



geologist, pi. 15, fig. 13. 



Niagaran Waldron Ind. 



C. D. Walcott and C. Van Deloo, coll. 1878 



420 hypotype Hall. 28th annual report of the New York 



state museum of natural history. 1879. pi. 16, fig. n, 12. 



Hall, nth annual report of the Indiana state geologist. 

 1882. pi. 16, fig. ii, 12. 



Niagaran Waldron Ind. 



C. D. Walcott and C. Van Deloo, coll. 1878 



iln the journal of the Boston society of natural history for 1861 (art. 4, p. 261-325) Prof. Hall pub- 

 lished without illustrations a paper entitled Descriptions of new species of Crinoidea from the 

 Carboniferous rocks of the Mississippi valley. Separate copies of this paper bound up with 7 photo- 

 graphic plates of crlnoids and explanatory matter were circulated in 1872. These plates were lettered 

 44 State mus. nat. hist. bull. 1 " and consisted chiefly of figures of Carbonic crinoids, but carried a 

 number of Devonic species ; the latter not referred to in the text. 



