74 



NEW YORK STATE MUSEUM 



Prattsburg sandstone and shale, 6, 



3S-39; thickness, 39. 

 Primitia, 48. 



clarkei, 42. 



seminulus, 52. 

 Primitiopsis punctnlifera, 45, 52. 

 Prioniodus erraticus, 62. 



spicatns, 62. 

 Pr,obeloceras lutheri, 58, 61, 62. 



? naplesense, 61. 

 Productella, 22, 34, 36. 



dissimilis, 64. 



lachryniosa, 63, 64. 



navicella, 43, 48, 49. 



papulata, 51, 55. 



shumardiana, 43, 46. 



specie- sa, 62, 64. 



spinulicosta, 46, 48, 51, 53. 

 mut. pyginaea, 58. 



tullia, 49. 

 Proetus clams, 42. 



crassimarginatus, 42. 



folliceps, 42. 



macrocephalus, 45, 47, 48, 50, 51, 

 52, 54. 



micro-gemma, 42. 



ovifrons, 42. 



rowi, 47, 52. 



stenopyge, 42. 



verneuili, 42. 

 Protocalyptraea marshalli, 61. 



styliophila, 59. 

 Protonympha, 35. 



devonica, 63. 

 Protospirialis, 62. 



minutissima, 61. 

 Pterinea sp., 64. 

 Pterinopecten conspectus, 53. 



exfoliatus, 45. 



hermes, 53. 



insons, 43. 



intermedins, 53. 



regularis, 53. 



undosus. 43. 

 Pterochaenia fragilis, 26, 45, 46, 58, 



59, 60, 61. 62. 



var. orbicularis, 61. . 



perissa, 61. 



sinuosa, 59. 



Pteropods, 42, 45, 49, 51, 52, 54, 57, 

 61. 



Pterygotus, 8. 

 Ptilodictya pluinea, 53. 

 Ptychophyllum striatum, 44. 



Raymond, Percy E., mentioned, 52. 

 Receptaculites sp., 64. 

 Reptaria stolonifera, 46. 

 Reteporina striata, 53. 

 Rhinestreet black shale, 6, ' 32-33 ; 



thickness, 32; fossils, 62. 

 Rhinocaris veneris, 46. 

 Rhipidomella cyclas, 46. 



lenticularis, 43. 



penelope, 47, 49, 51, 53, 54. 



semele, 43. 



vanuxemi, 46, 47, 49, 51, 53, 54. 

 Rhodocrinus gracilis, 52. 



nodulosus, 52. 



spinosus, 52. 

 Rhombopora tortalinea, 53. 

 Rhynchodus sp., 64. 

 Rhynchonella, 25. 



cuboides, 56. 



venustula, 56. 

 Romingeria, 46. 



Salina beds, 6. 



Sandbergeroceras syngonum, 30, 60.. 

 Sanguinolites solenoides, 54. 

 Schizodiscus, 50. 



capsa, 47. 

 Schizophoria impressa, 63. 



iowensis, 64. 



propinqua, 43. 

 Senecan group, 6. 

 Shaffer shale, 17. 



Skaneateles shale, 6, 17, 18; thick- 

 ness, 17; fossils, 46-47. 

 Spathiocaris, 33. 



emersoni, 59, 61, 62. 

 Sphenotus sp., 63. 

 Spirifer acuminatus, 43. 



angustus. 48, 49. 



arctosegmentus, 43. 



arenosus, 40-41. 



audaculus, 46, 48, 49, 53. 54. 



bimosialis, 64. 



consobrinus, 48, 49, 51, 53. 



