134 



INDEX. 



Planodiscus, 106. 

 rianorbclla, 106. 

 Plauorbinffi (Jurassic), 106. 

 Planorhinx, 105. 

 Planorbis, 105. 

 Planorbis, 106. 



albus, 107. 



andecolus, lOT. 



angulatus, lOT. 



bicarinatus, 106. 



campanulatus, 106. 



carinatus, lOT. 



veternus, 113. 



veternus, 107. 

 Planulites, 121. 

 Platiris, 91. 

 Platymya, 36, 43. 



dilatata, 43. 

 Platyschisma, 45. 

 Pleuroberaa, 91. 

 Pleurophorus, 34. 



Galhouni, 62. 



costatus, 35, 61. 



occidentalis, 35, 61. 



Fsubcuneatus, 61. 

 Pleurophorus (Permian), 61. 

 Pleurotomaria, 45. 



humerosa, 46. 



quoyana, 45. 



subturbinata, 47. 



Yvanii, 46. 

 Pleurotomariidae, 44. 

 Podopthalnia (Carboniferous), 



44. 

 Podopthalma (Jurassic), 107. 

 Polystomella, 11. 

 Polytremaria, 45. 

 Porambonitis, 23, 70. 

 Porodragus, 124. 

 Poromya, 36. 

 Possidonomia, 28. 

 Potsdam Period, 1. 

 Prisodon, 91. 

 Producta modesta, 16. 

 Productidoe, 21. 

 Productus, 22. 

 Productus aximius, 25. 

 Pronites, 25. 



adseendens, 25. 

 Prosobranchiata. (Carbonife- 

 rous), 44. 

 Prosobranchiata (Jurassic), 107. 

 Protocardia, 97. 



Shumardi, 98. 



Protozoa (Carboniferous), 11. 

 Protula, 127. 

 Pleriidae, 27. 

 Plcria, 79. 



(oxi/toma) Mtinsteri, 80. 

 Pteriida; (Jurassic), 79. 

 Pteriinae (Jurassic), 79. 

 Pteriinaj (Permian), 53. 

 Pteriniinse, 28. 



Pteriniina; (Carboniferous), 30. 

 Pleronautilus, 64. 

 Pteronites, 28. 

 Pteroperna, 28. 



Pteropoda (Potsdam Period), 4. 

 Pterotheca, 5. 

 Ptychoceras, 118. 

 Ptychomphalus, 46. 

 Ptychoparia, 6, 8. 

 Pugiunculus, 5. 

 Pulraonifera (Jurassic), 105. 

 Pulvinitis, 28. 

 Puperita, 108. 

 Pycnodonta, 74. 



Quadrula, 91. 



R. 



Reticularia, 17. 

 Retzia, 16. 

 Rhizopoda, 11. 

 Bhynchonella, 70. 

 psittacea, 71. 

 Rhynchonellidae, 16. 

 Ehynchondlidse, 70. 

 Rhynchospira, 16. 

 Riphidoglossata (Carbonif ), 44. 

 Rivulina, 114. 

 Rostrifera (Jurassic Period), 



111. 

 Rotundaria, 91. 

 Rotularia, 127. 

 Rupicola, 101. 



S. 



Sabella, 127 

 Sanguinolaria, 36. 

 Sanguinolites, 36. 



Sanguinolites angustatus, 39. 



costellatus, 40. 



granosus, 40. 



iridinoides, 39. 



variabilis, 40. 

 " Scabres, Les," 82. 

 Scalenaria, 91. 

 Scaphites, 118. 

 " Scaphoides, Les," 82. 

 Scaphula, 88, 89. 

 Schizodas, 57. 

 Schizodus, 58. 



alpinus, 58. 



devonicus, 59. 



ovatus, 59. 



truncatus, 68. 

 Scissurella, 45. 



Scutibranchiata (Jurassic), 107. 

 Sedgwickia, 36. 

 Sedgmckia, 38. 



attenuata, 39. 



allirostrata, 41. 



concava, 41. 



granosa, 40. 



sulcata, 40. 



topekaensis, 40. 

 Senilia, 88. 

 Serpula, 127. 



(undt.), 128. 



vermicularis, 127. 

 Serpulidse, 127. 

 Serpulites, 127. 

 Simplegadcs, 64. 

 Simplegas, 64. 

 Spirifer, 17, 19. 

 Spirifer, 16. 



Clanyanus, 20. 



crenistria, 26. 



cuspidatus, 17. 



glaber, 19. 



{Marlinia)plano-convexus, 

 20. 



(Martinia) umbonatus, 21. 



urei, 20. 

 Spirifera, 17. 



pulchra, 19. 

 Spiriferidee, 16. 

 Spiriferidae, 19. 

 Spiriferina, 16. 



pulchra, 19. 

 Spirigcra, 16. 

 Spirorbis, 107, 128. 

 Spirulai'.a, 127. 

 Spondylidoe, 48. 



