TYPE SPECIMENS OF PALEOZOIC FOSSILS 497 



Pterinea securiformis Hall 



3051 sjfA type Avicula securiformis Hall. Paleontology 



of New York. 1852. 2:331, pi. 75, fig. 4. 



Coralline (Cobleskill) limestone Schoharie N. Y. 



3052 9 Y 9 TYPE Hall. Paleontology of New York. 1852. v. 2, 



pi. 75, fig. 5b. 



Coralline (Cobleskill) limestone Schoharie N. Y. 



Pterinea ? suborbicularis see Pterinopecten 

 suborbicularis 



Pterinea triqueter see Gosselettia triquetra 

 Pterinea undata see Clionychia undata 



PTERINOPECTEN Hall 



Pterinopecten conspectus Hall 

 3°53 91 i Q TYPE : plastotype Pterinopecten conspectus 

 Hall. Paleontology of New York. 1883. v. 5, pt 1, 

 plates and explanations, pi. 17, fig. 17. 



Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 17, fig. 17. 



Hamilton beds Skaneateles lake, N. Y. 



G. B. Simpson, coll. 1863 

 3054 ng-Q- type Hall. Paleontology of New York. 1883. v. 5, 

 pt 1, plates and explanations, pi. 17, fig. 18. 



Hall. Paleontology of New York. 1884. v. 5, pt 1, 

 pi. 17, fig. 18. 



Hamilton beds Skaneateles lake, N. Y. 



G. B. Simpson, coll. 1863 

 3°55 "H— TYPE Hall. Paleontology of New York. 1883. v. 5, 

 pt r, plates and explanations, pi. 17, fig. 20. 



Hall. Paleontology of New York. 18S4. v. 5, pt 1, 

 pi. 17, fig. 20. 



Hamilton beds Darien, Genesee co. N. Y. 



C. A. White, coll. 1S60 

 3056 2.11Q. type Hall. Paleontology of New York. L8S3. v. 5, 

 pt 1, plates and explanations, pi. 17, fig, 21. 



Hall. Paleontology of New York. 1884. v. 5, pt t, 

 pi. 17, ti<;. 21. 



Hamilton beds Fall broolc near Skaneateles lake, N. Y. 



G. T>. Simpson, coll. I 



