Plaice 2S 



Fig. 1. Pseudopolymorphina jonesi Cushman and Ozawa. X 25. Miocene, St. 

 Paul de Dax, near Bordeaux, France, a, b, side views; c, basal view. 



2. Pseudopolymorphina subcylindrica (Hantken). X 35. Miocene, Torto- 



nian, Amphistegina marl, Nussdorf, near Vienna, Austria, a, b, side 

 views; c, basal view. 



3. Pseudopolymorphina digitata (d'Orbigiiy). X 35. Cretaceous, upper 



Senonian, Maastricht, Holland, a, side view; fe, apertural view. 



4. Pseudopolymorphina leopoliiana (Reuss). X 35. Cretaceous, Cambridge 



greensand, Saxon Cement Works, Cambridge, England, a, b, side 

 views; c, basal view. 



5. Paleopolymorphina pleurostomelloides (Franks). X 65. Cretaceous, 



lower Cenomanian, Tecklenberg, Westphalia, Germany, a, side view; 

 b, apertural view. 



6. Paleopolymorphina gauUina (Berthelin). X 80. Cretaceous, Gault, 



Folkestone, England, a, side view; b, basal view. 

 7-9. Pseudopolymorphina mendezensis (White). X 45. Upper Cretaceous, 

 Navarro formation, clay pit at Corsicana, Tex. Various stages in 

 development; b, basal view. 



173 



