134 



INDEX. 



Planodiscus, 106. 

 Planorbella, 106. 

 Planorbinae (Jurassic), 106. 

 Planorbinx, 105. 

 Planorbis, 105. 

 PlanorUs, 106. 



albus, 107. 



andecolus, 107. 



angulatus, 107. 



bicarinatus, 106. 



campanulatus, 106. 



carinatus, 107. 



veternus, 113. 



vetemus, 107. 

 Planulites, 121. 

 Platiris, 91. 

 Platymya, 36, 43. 



dilatata, 43. 

 Platyschisma, 45. 

 Pleuroberaa, 91. 

 Pleurophorus, 34. 



Galhouni, 62. 



costatus, 35, 61. 



occidentalis, 35, 61. 



?subcuneatus, 61. 

 Pleurophorus (Permian), 61. 

 Pleurotomaria, 45. 



humerosa, 46. 



quoyana, 45. 



subturbinata, 47. 



Yvanii, 46. 

 Pleurotomariidse, 44. 

 Podopthalma (Carboniferous), 



44. 



Podopthalraa (Jurassic), 107. 

 Polystomella, 11. 

 Polytremaria, 45. 

 Porambonitis, 23, 70. 

 Porodragus, 124. 

 Poromya, 36. 

 Possidonomia, 28. 

 Potsdam Period, 1. 

 Prisodon, 91. 

 Producta modesta, 16. 

 Productidse, 21. 

 Productns, 22. 

 Productus aximius, 25. 

 Pronites, 25. 



adscendens, 25. 

 Prosobranchiata. (Carbonife- 

 rous), 4*. 



Prosobranchiata (Jurassic), 107. 

 Protocardia, 97. 



Shumardi, 98. 



Protozoa (Carboniferous), 11. 

 Protula, 127. 

 Pteriidx, 27. 

 Pleria, 79. 



(oxyloma) Munsteri, 80. 

 Pteriidse (Jurassic), 79. 

 Pteriinas (Jurassic), 79. 

 Pteriinse (Permian), 53. 

 Pteriminx, 28. 



Pteriniinffi (Carboniferous), 30. 

 Pteronautilus, 64. 

 Pteronites, 28. 

 Pteroperna, 28 



Pteropoda (Potsdam Period), 4. 

 Pterotheca, 5. 

 Ptychoceras, 118. 

 Ptychomphalus, 46. 

 Ptychoparia, 6, 8. 

 Pugiunculus, 5. 

 Pulmonifera (Jurassic), 105. 

 Pulviuitis, 28. 

 Puperita, 108. 

 Pycnodonta, 74. 



Q- 



Quadrula, 91. 



R. 



Reticularia, 17. 

 Retzia, 16. 

 Rhizopoda, 11. 

 Ehynchonella, 70. 

 psittacea, 71. 

 Rhynchonellidae, 16. 

 Rhynchonellidse, 70. 

 Rhynchospira, 16. 

 Riphidoglossata (Carbonif.), 44. 

 Rirulina, 114. 

 Rostrifera (Jurassic Period), 



111. 



Rotundaria, 91. 

 Rotularia, 127. 

 Rupicola, 101. 



S. 



Sabella, 127 

 Sanguinolaria, 36. 

 Sanguinolites, 36. 



Sanguine! ites angustatus, 39. 



costellatus, 40. 



granosus, 40. 



iridinoides, 39. 



variabilis, 40. 

 " Scabres, Les," 82. 

 Scalenaria, 91. 

 Scaphites, 118. 

 " Scaphoides, Les," 82. 

 Scaphula, 88, 89. 

 Schizodus, 57. 

 Schizodus, 58. 



alpinus, 58. 



devonicus, 59. 



ovatus, 59. 



truncatus, 58. 

 Scissurella, 45. 



Scutibranchiata (Jurassic), 107. 

 Scdgwickia, 36. 

 Sedgwickia, 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. 

 Simplegades, 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. 

 Spiriferidse, 16. 

 Spiriferidse, 19. 

 Spiriferina, 16. 



pulchra, 19. 

 Spirigera, 16. 

 Spirorbis, 107, 128. 

 Spirulaea, 127. 

 Spondylidae, 48. 





