NEW YORK STATE MUSEUM 



29 



Tully horizon, 22. 

 TuUy limestone, 21. 



Stropheodonta concava, 14. 



demissa, 19. 



inaequistriata, 14. I 



Styliolina fissurella, 15, 17, 18, 19, 22. , Vanuxem, cited, 16, 17. 



i Vitulina pustulosa, 20. 

 Tentaculites gracilistriatus, 18, 19, 



21, 23. . West river shale, 23-24. 



Tichenor limestone, 20. Whitfieldella cf. laevis, 10. 



Tornoceras uniangulare, 17, 23. nucleolata, 10. 



Trochoceras gebhardi, 10. i sulcata, 10. 



Tropidoleptus carinatus, 18, 19, 20. I Wood, cited, 15, 16, 17. 



