INDEX TO GEOLOGY OF GENEVA-OVID QUADRANGLES 41 



Spirifer angustus, 20. 

 arenosus, IO-II. 

 audaculus, 16, 20. 

 consobrinus, 20. 

 crispus var. corallinensis, 9. 

 divaricatus, 20. 

 fimbriatus, 16, 20. 

 granulosus, 20, 21. 

 laevis, 30, 31. 

 marcyi, 20. 



mucronatus, 18, 20, 21. 

 ■z/ar. posterus, 30, 31. 



murchisoni, 11. 



subumbona, 31. 



vanuxemi, 10. 

 Spirorbis angulatus, 19. 

 Stafford limestone, 14, 15, 16. 

 Starkey, 29. 



Starkey point, 26, 27, 28. 

 Straparollus rudis, 20. 

 Striatopora limbata, 21. 

 Stromatopora, 9. 

 Stromatopora concentrica, 9. 

 Strophalosia truncata, 15, 16, 31. 

 Stropheodonta concava, 20. 

 deinissa, 20. 



(Douvillina) inequistriata, 20. 



junia, 20. 



varistriata, 9, 10. 

 Styliola limestone, 25, 27. 

 Styliolina fissurella, 15, 16, 18, 19, 



26-27, 31. 



Thomas Brothers quarry, 14. 

 Tichenor limestone, 6, 19, 21-22. 

 Tkhenor point, 21. 

 Tommy creek, 29. 



Tornoceras discoideum, 16. 



uniangulare, 19, 31. 

 Trigeria lepida, 20. 

 Trochoceras gebhardi, 9. 

 Tropidoleptus carinatus, 20. 

 Tully, 23. 



Tully limestone, 6, 16, 22, 23-25, 26, 



27, 33, 34, 35- 

 Turrilepas devonica, 19. 



foliata, 19. 



nitidula, 19. 



squama, 19. 



tenera, 19. 

 Tyre, 7. 



Ulsterian, 6. 



Union Springs, 9, io, 15, 33. 

 Upper black shale, 25. 



Vanuxem, cited, 11, 12, 14, 16, 23. 

 Varick station, 17. 

 Vernon shales, 5, 7. 



Waterloo, 13, 14, 15, 16. 



Watkins quadrangle, 32. 



West Hill (Gardeau) flags and 



shale, 6, 32. 

 West River shale, 6, 28-30. 

 West River valley, 28. 

 Whitfieldella sulcata, 9. 

 Willard, 22, 23, 24, 26, 27, 28 

 Wilson's creek, 17, 18, 33. 

 Wiscoy shale, 32. 



Zaphrentis halli, 20. 

 simplex, 20. 



