TYPE SPECIMENS OF INVERTEBRATE FOSSILS 71 



Gomphoceras 



breviposticum Whitfield 



Whitfield, R. P., 1882: p. 339, pi. 26, fig. 15. 

 Holotype 137048 



Hamilton Gr. Wisconsin 



calvini Cleland 



Cleland, H. F., 1911: p. 465, 466, text-fig. 6. 

 Syntype 85952 



Devonian, Zone B, The "Hard Layer" Wisconsin 



? Jus if or me Whitfield 



Whitfield, R. P., 1873: p. 338, pi. 26, fig. 16. 

 Holotype 137047 



Hamilton Gr. Wisconsin 



oviforme Hall 



Nettelroth, Henry. 1889: p. 193, pi. 21. figs. 17, 18. 

 Hypotypes 51277 



Devonian Fm., Hydraulic Ls. Indiana 



suboviforme Walcott 



Walcott, C. D., 1884: p. 202, pi. 17, figs. 8, 8a. 

 Holotype 13984 



Devonian Ls. Nevada 



turbiniforme Meek and Worthen 



Nettelroth, Henry, 1889: p. 194, pi. 21, ? figs. 15, 16. 

 Hypotypes 51278 



Devonian Fm., cherty layers on top 

 of Hydraulic Ls. Indiana 



mabashensis Newell 



Kindle, E. M., and Breger, C. L., 1904: p. 476, 477, pi. 20, fig. 4. 

 Hypotypes 52947 



Niagara Gr. Indiana 



whitfieldi Cleland 



Cleland, H. F., 1907: p. 464, 465; 1911, p. 137, pi. 40, fig. 1. 

 Syntype 78332 



Hamilton Wisconsin 



Gonioceras 



? "near" anceps Hall 



Butts, Charles, 1941: p. 91, pi. 89, figs. 22, 23. 

 Figured specimens 97470a, b 



Ottosee Fm. Virginia 



