CRETACEOUS FLORA. 29 



Textularla.) 



TEXTULARID^E. 



Sub-Family TEXTULARINvE. 

 TEXTULARIA, Def ranee. 



TEXTTTLARIA GLOBULORA Ehrenberg. 



I'LATF, C. FIGS. 1-6. 



Textularia ylobuloaa EiiUENBEKG. Abhand. Akad. Berlin. (1838) 1831), pi. \v. 



Textularia globulosa Id., Ibid., (1841) pp. 291, 438. 



Textnl'irin </li,i,ni<,::<i. FIiTCHCOCK, 1843. Trans. Asso. Geol. and Nat., 1840-1842, p. 367, pi. xv, flgn. 



1, 3, 4, 5, 7. 



Te-x.lul.nri" aiui-.ri,mn.n I'.AILKY, 1841. Aninr. JourScl., vol. xli, p. 401, figs. 1, 2. 



Texi.nl' i rid </it>inili>xti, MKKK, 1864. Smithsonian Tnst. Check List, Cretaceous and Jurassic Fossils, p. 1. 

 Textuluria americanu Id., Ibid., p. 1. 

 Textularia miasouriensis Id., Ibid., p. 1. 



Ttxtularia ylobulom DAWSON, 1874. Can. Nat. vol. vii, p. 253, fig. a. 

 Textukma ylobultjsa SCHAKDT, 1884. Etudes Geol. Sur. le Pays D'Enhaut. Bull. Soc. Vaud., vol. 



XX, p. 74. 



Textu.lo.rin ijiniininxn IUMOVILL and WRIGHT, 1885. Trans. Roy. Irish Acad., p. 323. 

 Textularia globulosa WOODWAKD and THOMAS, 1885. Thirteenth Annual Report, Geol. Nat. Hist. 



Surv. Minn., p. 166, pi. Ill, figs. 1-5. 



" T. globulin, t,estula microscopica superficie laevi, in adulta longiore quam lata, 

 articulis globosis." EHRENBERG. (1838, Abhand. Akad. Berlin, p. 135.) 



T. globulosa, microcsopic test with a smooth surface, adult forms longer than 

 wide, with spherical or globular chambers. 



Locality. Meeker county, Little Fork rivnr, Minn. Saline county, Neb. South Chicago, Ills. 



Textularia globulosa is very abundant in the Minnesota clay and chalky lime- 

 stone, and common in Nebraska, the specimens from that material being very fine. 

 In the south Chicago material they are quite common and well preserved. 



Dr. G. M. Dawson, in his paper on the Foraminifera of the Cretaceous rocks of 

 Manitoba, gives the following description of T. globulosa : "A stout fornTwith glo- 

 bose chambers rapidly increasing in size at each addition, and sometimes even as 

 broad as long. The primordial chamber, and those next to it, are often bent away 

 several degrees from the axis of symmetry of the larger part of the shell. The sur : 

 faces of the chambers are marked with extremely minute diagonal interrupted 

 ridges or wrinkles. "f This description is far superior to that of Ehrenberg. The 

 species has also been found in Dakota, and in the " Eolian sand " from the Smoky 

 Hill river, near Lindsborg, Kansas. 



Textularii. nmeriainn Ehrenberg. This species forms a very large part of the 

 mass of the chalk rocks of the upper Missouri and Niobrara rivers. It is found in a 

 light cream colored Cretaceous marl on the upper Mississippi, called there "prairie 

 chalk"; has been examined by Prof. Bailey, and figured, but not described, in the 

 Amer. Journ. Sri., xli. p. 401, 1841.* 



*Amr.r. .Jour. Set. 1MI. 



turnlM. vti, IS74. 



