TYPE SPECIMENS OF PALEOZOIC FOSSILS 199 



1 144 1 \^ 2 - hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 53, fig. 6. 



Helderbergian Clarksville N. Y. 



1 145 1J ^- hypotype Hall & Clarke. Paleontology of New York. 



1894. v. 8, pt 2, pi. 53, fig. 8. 



Helderbergian Clarksville N. Y. 



barrandella Hall & Clarke 

 Barrandella areyi Hall & Clarke 



1 146 £*j*£ type Barrandella areyi Hall & Clarke. Paleon- 



tology of New York. 1894. v. 8, pt 2, pi. 71, fig. 14-16. 



Barrandella areyi Hall & Clarke. 14th annual 



report of the New York state geologist. 1895. pi. 13, 



Clinton beds Rochester N. Y. 



Barrandella fornicata Hall 



1 147 iiii type Pentamerus fornicatus Hall. Paleon- 



tology of New York. 1852. 2:81, pi. 24, fig. 7a-7d. 



Barrandella fornicata Hall & Clarke. Paleon- 

 tology of New York. 1894. v. 8, pt 2, pi. 71, fig. n-13. 



Clinton beds Lockport N. Y. 



Jewett collection 

 Barrandella fornicata var. Hall 



1 148 iij&A type Pentamerus fornicatus var. Hall. nth 



annual report of the Indiana state geologist. 1882. p. 299, 

 pi. 27, fig. 15. 



Niagaran Waldron Ind. 



C. I). Walcott and C. Van Deloo, coll. 1878 



barroisella Hall & Clarke 

 Barroisella subspatulata Meek & Worthen (sp.) 



1149 11 i ± ' hypoplastotype Lingula subspatulata Meek \ 



Worthen. Geological survey of Illinois. 1868. 3:437- 



Barroisella subspatulata Hall & Clarke. 



Paleontology of New York. 1892. v. 8, pt 1, pi. 2, 



fig- M, 15- 



Black slate (Genesee) White river, near Rockford Ind. 

 If 5° iV^ hypoplastotype 1 hill & Clarke. Paleontology of New- 

 York. 1892. V. 8, pt I, pi. 2, fig. 16. 



Black slate (Genesee) White river, near Rockford Ind. 



