WEITINGS OF F. B. MEEK AND F. V. HAYDEN. 31 



Page. 

 Myacitea (Sclilot.), Munster, 1840 51 



jr. devressurs, n. a., Meek, 1864, pLviii, figs. 6and6a 51-52 



53 

 Cephalopoda 



Belemnitidce 



CO 



Belemnltes, Auct 



Belemniteg, , 1864, pi. viii, figs. 9and9a 53 



29. 



Meek, F. B., and Hayden, F. V. Paleontology of the Upper Missouri. < Smith- 

 sonian contributions to knowledge (172), pp. 1-135, pis. i-v. 1B64. Washington, 

 1865. 



Primordial, Carboniferous, Permian, and Jurassic. Genera Camptonectes, Lioplacodes, 

 Eumicrotis, Choenomya. This work contains descriptions of new fresh-water Jurassic species, 

 tlie first of tliat age discovered in Korth America. The work has additional importance in 

 consequence of the phUosophical discussion of important questions. 



Page. 

 Introduction ~ 



SILURIAN AGE. (POTSDAM OE PBIMOEDIAL PEEIOD.) 



MollUrSca. 

 Brachiopoda. 

 LingiUidce 



Xiwi/wZepw, Hall, 1863 1-2 



L-pinniformis, Owen, 1852, pi. i, figs. la,b 2-3 



L. prima (Conrad), Hall, 1847, pi. i, figs. 2 a, 6 3 



OboJtfiia, Billings, 1861 3-4 



O. nana, M. &H., 1861, pi. i, figs. 3a-d 4 



Gasteropoda. 



Pteropoda. 



Thecosomata 



Oavolinidce. 



4-6 



Iheca, Sowerby,1845 ^ 



T.gregaria,yL.&'B.., 1861, figs. a-d,p.5 5-6 



Articulata. 

 Crustacea. 

 Trilobita. 



ParadoxidcB ' 



Agrrawioff, Corda, 1847 '-^ 



' J..ow«?u,M. &H., 1861, figs, a-c, p. 9 9-10 



Agraulos ? pi. i, fig. 4 10 



CARBONIFEBOUS AGE. (CARBONIFEEOUS PERIOD.) 



Protozoa. 

 Rhizopoda. 

 Foramini/era. 



Camerinidce - ll-lo 



Jtwuiinn, Fischer, 1837 13-14 



F. cijlindrica, Fischer, 1837, pLi, flga.eo-i 14-15 



MoUtisca. 

 Brachiopoda. 



Spiriferidoe 1" 



,S>m/fir, Sowerby, 1815 17-20 



Trigonotreta, Kujnig, =Spirifer of most authors 19 



Martinia, McCoy, = Amboerelia, Hall 1^ 



S. {Martinia) plano-convexus Shumard, 1855, figs. Or-e, p. 21 20-21 



Productidce 21-2.. 



Chonetes, Fischer, 1837 



C. mucronata, M. & H., 1858, pi. i, fig. 5, o-e 22-23 



Strophomenidce 



Semipronites, Pander, 1830 ..4-..0 



H. crassus, M.&H., 1858, pi. i, fig. 7 a-d - •-- 26-27 



