GENUS TEXTULARIA DEFRANCE 



Textularia gibbosa d'Orbigny 



1 Thin section, x 58. (Slide i) 



2 Entire specimen, x 30. a, lateral view; b, end view. (After 



Brady, Pal. Soc, v. 30, 1876, pi. 10, figs. 26 a, b) 



Textularia globulosa Ehrenberg 



3 Thin section, x 174. (Slide 3) 



4 Entire specimen, x 75. a, lateral (front) view; b, side view; 



c, end view. (After Jones, Pal. Soc, v. 49, 1895, pi. 6, 

 figs. 18 a, b, c) 



Textularia gramen d'Orbigny 



5 Thin section, x 174. (Slide 4) 



6 Entire specimen, lateral view, x 60. (After Cushman, U. S. G. S. 



Bui. 676, 1918, pi. 2, fig. la) 



Textularia pupa Reuss 



7 Thin section, x 174. (Slide 3) 



8 Entire specimen, a, front view; h, side view. (After Reuss, 



Sitz. Akad. Wiss. Wien, v. 40, i860, pi. 13, figs. 5 a, b. 

 The largest example measured 1.2 mm in length; 0.62 mm in 

 breadth) 



Textularia trochus d'Orbigny 



9 Thin section, x 116. (Slide 5 (X)) 



10 Entire specimen, x 12. a, lateral view; b, end view. (After 



Jones, Parker and Brady, Pal. Soc, v. 19, 1865, pi. 3, 

 figs. 17, 18) 



.GENUS VALVULINA d'oRBIGNY 



Valvulina sp. 



11 Thin section, x 58. (Slide i) 



12 Thin section of a smaller type and different species, x 174. 



(SHde 4) 



