TYPE SPECIMENS OF PALEOZOIC FOSSILS 



155 



Escharopora ( P t i 1 o d i c t y a ) tenuis? 

 Hall. 2d annual report of the New York state geologist. 

 1883. pi. 17, fig. 13. 



Ptilodictya nebulosa Hall & Simpson. Pale- 

 ontology of New York. 1887. v. 6, pi. 17, fig. 13. 



New Scotland beds Near Clarksville N. Y. 



C. D. Walcott and C. Van Deloo, coll. 1877 



886 s^A- type Hall. 2d annual report of the New York state geolo- 



gist. 1883. pi. 17, fig. 14, 15. 



Hall & Simpson. Paleontology of New York. 1887. 

 v. 6, pi. 17, fig. 14, 15. 



New Scotland beds Near Clarksville N. Y. 



L E. Brown and C. Van Deloo, coll. 1876 



887 3J £± type Hall. 2d annual report of the New York state geolo- 



gist. 1883. pi. 17, fig. 16. 



Hall & Simpson. Paleontology of ttew York. 1887. 

 v. 6, pi. 17, fig. 16 



New Scotland beds * Near Clarksville N. Y. 



L. E. Brown and C. Van Deloo, coll. 1876 



888 ■ §J ~ i type Paleschara ? foliata Hall. 2d annual report 



of the New York state geologist. 1883. pi. 17, fig. 18. 



Hall & Simpson. Paleontology of New York. 1887. 

 v. 6, pi. 17, fig. 18. 

 ' New Scotland beds Near Clarksville N. Y. 



L. E. Brown and C. Van Deloo, coll. 1876 



Ptilodictya parallela Hall & Simpson 



889 67 1 82 type Ptilodictya parallela Hall & Simpson. 



Paleontology of New York. 1887. 6 : 270, pi. 61, fig. 7, 8. 

 Hamilton beds Fall brook, Ontario co. N. Y. 



Ptilodictya plumea Hall & Simpson 



890 type Ptilodictya plumea Hall & Simpson. Pale- 



ontology of New York. 1887. 6:271, pi. 61, fig. 9-12. 

 Hamilton beds Hamburg-on-the-Lake N. Y. 



Ptilodictya retiformis Hall & Simpson 

 3g r 6jL6 4 type Ptilodictya retiformis Hall & Simpson. 



Paleontology of New York. 1887. 6 : 272, pi. 61, fig. 13. 

 Hamilton beds Alden N. Y. 



