PLATE XXI. 



PAGE 



Fig. 1. Rhynchonella sappho Hall 512 



Kinderhook or base of Burlington. 



Figs. 2-3. Spirifer winchelei Herrick. 



Lower part of Burlington. Above conglomerate II. 



Figs. 4-7. Syringothyris herricki Suchert. 

 Finderhook. Freestone at Granville. 



Fig. 8. Peatyceras herTzeri Meek. 



Cast, Kinderhook, Granville, O. 



Fig. 9. Orthis vanuxemi, var gracilis Herrick. 



Kinderhook, Granville. 



Fig. 10. CrypTONeeea eudora Hall. 

 Kinderhook, Granville. 



Fig. 11. Paeaeoneieo ? marshaelensis Winchell. 



Kinderhook, Granville. 



Fig. 12. Unidentifed. 



Kinderhook or Burlington. 



Fig. 13. Spiriferina solidirostris White. 



Burlington. 



Fig. 14. Hemipronites crenistria Phil. 



Kinderhook, Granville. 



Fig. 15. SCHIZODUS CONEUS Hall. 



Kinderhook. 



Fig. 16. Unidentified crinoid. 



Kinderhook. 



Fig. 17. Ctenodonta houghtoni Stevens. 



Kinderhook. 



Fig. 18. Rhynchoneila sp. 



