Weno and Pawpaw Formations 145 



these turns are rounded. The shape of the aperture and of the teeth 

 to the body and bears much coarser imbricated lamellae than in Cragin's 

 species; the aperture is more slender throughout and is noticeably more 

 compressed below; the sub-central crenulate region of the inner edge of 

 the outer lip is distinctly angular ; the inner lip is broader and the three 

 teeth placed differently, the two terminal ones being more closely spaced. 

 Our species is apparently larger than C. tarrantensis, and comes from a 

 higher horizon. 



The unfigured and indeterminate species Cinula ? texana (Shumard) 2 

 was described from the Fredericksburg division of Bosque County; its 

 description will apply to most species of the genus. C. rectilabrum Gabb 1 

 is a lower species and bears on its inner lip two teeth instead of three; 

 it is more slender, more pointed apically, and has narrower lips and a 

 more elongate aperture. Cinulia pelletti Whitney and C. conradi Whit- 

 ney, 3 both. from the Buda limestone differ in several respects from the 

 Weno species, the former in the proportions of the shell, the height and 

 shape of the aperture, and the thickness of the outer lip, the latter in the 

 shape, size and number of costellae. 



PROTOZOA 



NODOSARIA TEXANA Conrad 



PI. 11, fig. 2 



This characteristic foraminiferean shell has already been described* 

 in some detail and the features mentioned apply to the Weno and Pawpaw 

 material at hand. The fossil ranges in North Texas through the upper 

 third of the Weno limestone and the base of the Pawpaw clay. The in- 

 dividuals are generally scattered, but also rarely occur in slabs. At Fort 

 Worth there is a zone of abundance at a point about 18 feet below the top 

 of the Weno formation, which is found at this stratigraphic level every- 

 where between the Red River and the Brazos. This zone appears to be 

 different from the common Del Rio Nodosaria zone of West Texas, for 

 prevailingly in West Texas the zone of abundance of Nodosaria is in the 

 top of the Del Rio clay .iust underneath the Buda limestone, and the fossil 

 is scattering in the middle Del Rio clay. Near Del Rio, Texas, where the 

 formation is about 200 feet thick the Nodosaria slabs are prominent near 

 the top, and near the Chisos Mining Company, Brewster County, where 



iGabb, Geol. Surv. Calif., Pal. II., p. 264, pi. 35, figs. 10-10a. 



'Shumard, Trans. Acad. Sci., St. Louis, I, 1860, 597. 



"Whitney, Trans. Texas Acad. Sci., XII, p. 23, pi. 10, figs. 9-11. 



B6se, Inst. Geol. Mex., Bol. 25, p. 177, 1910; Adkins and Winton, Univ. Texas Bull. 



1945, p. 76, 1920. 



