42 



25 



26. 



27 



28. 



29. 



30. 



31. 



32. 



33. 



34. 



35. 



36. 



37. 



38. 



39. 



40. 



41. 



42. 



43. 



44. 



45. 



46. 



47. 



48. 



49. 



50. 



51. 



52. 



53. 



54. 



55. 



56. 



57. 



58. 



59. 



60. 



61. 



62. 



63. 



64. 



65. 



66. 



67. 



68. 



69. 



70. 



71. 



. Cyrtoceras .. 

 , Cyrtocerina .. 



Oncoceras 



Streptoceras.. 

 Piloceras .... 



Lituites 



Orthoceras .. 

 Tretoceras . . 



Huronia 



Actiiioceras .. 

 Ormoceras ,. 

 Aulacoceras ... 



Endoceras , 



Cameroceras.., 

 Troclioceras ... 

 Hercoceras ... 

 Gomplioceras 

 Phragmoceras 



Ascoceras 



Glossoceras ... 

 Apkragmites 



Aturia 



jSothoceras ... 

 Bathmoceras... 

 Gonioceras ... 

 Goniatites....... 



Clynienia 



Bactrites 



Clydonites ... 

 Ctioristoceras 

 Bkabdoceras... 

 Cochloceras ... 



Ceratites 



Baculina ...... 



■Ammonites ... 



Crioceras 



Toxoceras 



Scaphites 



Ancyloceras ... 

 Ptychoceras ... 



Hamites 



Hamulina ... 



Baculites , 



Turrilites , 



Helicoceras 

 Heteroceras .... 

 Anisoceras .... 



