TYPE SPECIMENS OF PALEOZOIC FOSSILS 



303 



1864 hypotype Beecher & Clarke. New York state museum 



memoir 1. 1889. pi. 4, fig. 19, 19a. 



Niagaran Waldron Ind. 



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



1865 ^-2- hypotype Beecher & Clarke. New York state museum 



memoir 1. 1889. pi. 4> n g- 2 °> 2oa - 



Niagaran Waldron Ind. 



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



1866 -ZJLo hypotype Beecher & Clarke. New York state museum 



memoir 1. 1889. pi. 4, fig. 21, 21a. 



Niagaran Waldron Ind. 



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



1867 hypotype Beecher & Clarke. New York state museum 



memoir 1. 1889. pi. 4, fig. 22, 22a. 



Hall & Clarke. Paleontology of New York. 1894. 

 v. 8, pt 2, pi. 56, fig. 38. 



Niagaran Waldron Ind. 



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



1868 sa^sl hypotype Beecher & Clarke. New York state museum 



memoir 1. 1889. pi. 8 (series of 20 growth stages). 

 Niagaran Waldron Ind. 



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



roemerella Hall & Clarke 



Roemerella grandis Vanuxem (sp.) 



1869 $- 2 -3-°- type Orbicula grandis Vanuxem. Geology of New 



York; report on the 3d district. 1842. p. 152, fig. 4. 



Discina grandis Hall. Paleontology of New 

 York. 1867. v. 4, pi. 1, fig. 18b. 



Roemerella grandis Hall &: Clarke. Paleontology 

 of New York. 1892. v. 8, pt 1, pi. 4E, fig. 30. 



Hamilton beds Cazenovia N. Y. 



L. Vanuxem coll. 



romingerina Hall & Clarke 



Romingerina julia A. Winchell (sp.) 



1870 hypotype Centronella julia A. Winchell. Pro- 



ceedings of the Academy of natural sciences of Phila- 

 delphia. 1862. p. 405 



Romingerina julia Hall & Clarke. Paleontology 

 of New York. 1894. v. 8, pt 2, pi. 79, fig. 28. 



Marshall group Pointe aux Barques Mich. 



