PLATE XXI. 



PAGE 



Fig. 1. Rhynchonella sappho Hall 512 



Kinderhook or base of Burlington 



Figs. 2-3. Spirifer winchelli Herrick. 



Lower part of Burlington. Above conglomerate II. 

 Figs. 4-7. Syringothyris herricki Suchert. 

 Finderhook. Freestone at Granville. 



Fig. 8. PlaTyceras herTzeri Meek. 



Cast, Kinderhook, Granville, O. 



Fig. 9. Orthis vanu'xemi, var gracilis Herrick. 



Kinderhook, Granville. 



Fig. 10. Cryptonella eudora Hall. 



Kinderhook, Granville. 



Fig. 11. Palaeoneilo ? marshallensis Winchell. 



Kinderhook, Granville. 



Fig. 12. Unide'nTifed. 



Kinderhook or Burlington. * 



Fig. 13. Spiriferina soudirostris White. 

 Burlington. 



Fig. 14. Hemipronites crenistria Phil. 

 Kinderhook, Granville. 



Fig. 15. Schizodus coneus Hall. 

 Kinderhook. 



Fig. 16. Unidentified crinoid. 



Kinderhook. % 



Fig. 17. Ctenodonta hodghtoni Stevens. 



Kinderhook. 

 Fig. 18. Rhynchonella sp. 



