74 BULLETIN NO. 30, UNITED STATES NATIONAL MUSEUM. 



Page. 



Prothyrig, Meek 223 



P.eUgmu, Meek, 1871, pi. x, figs. 9 a, b 223 



JSolenopsix, M cCoy 223 



S. aoUnoides. Geiuitz, sp., 1860, pi. x, flg. 3 223-224 



OasUropoda, Cuvier. 



Dentalium , LiuDOiUS 224 



D. mfekianum, Geinitz, 1806, pi. xi, flgs. 16 a, b 224 



Bellerophon, Montibrt 224 



B. carhonariug, Cox, 1857, pi. iv, flg. 10, pi. si, flgs. 11 o-c 224-225 



Ji. viontfortianuii, Norwood &. Prattcn, 1855, pi. xi, flg. 15, aud 12? 225-226 



B. marcouianiig, Geiuitz, 1666, pi. iv, tig. 17, and pi. xi, flgs. 13 o, b 226-227 



B. pfrcarinatus, Courad, 1842, pi. xi, flg. 14 227 



Platyceras, Conrad 227 



P. nebrasccnsis, u.s., Meek, 1872, pi. iv, flgs. 15 a, 6 227-228 



Macrocheilus, Phillips 228 



M. intercalarig var. pulchellus, M. &, W., 1860, pi. vi, flg. 8 228 



OrOwnema,M.SiW 228 



O. mbtaeniata, Geiuitz, sp., 1866, pi. xi, flg. 10 228-229 



Aclix. Loven 229 



A. swalloviana, Gi'iuitz, sp., 1866, pl.xi, figs. 7 o, 6 229-230 



StraparoUus, Moutl'ort 230 



S. {Eiwmphalus) rugosug, Hall, 1858, pi. vi, figs. 5 a, b, and pi. xi, flgs. 4 o, b 230-231 



Pleurotomaria, Uefrance 231 



P. hai/deniana, Geinitz. 1866, pi. xi, fig. 5 231 



/'. perkumervsa, n. s., Meek, 1872, pi. iv, flgs. 13 a, 6 232 



P. inomata, n.s., Meek, 1872, pi. iv, fig. 14 232-233 



P. grayviUemfig, Norwood &. Pratten, 1855, pl.xi, fig. 9 233 



P. marcoviana, Geinitz. 1866, pl.xi, flg.8 233 



P. subdecmgata, Geinitz, 1866, pl.xi, flg. 19 233 



Murchisonia, de Vemeuil 234 



M. nebrascengig, Geinitz, 1866, pi. xi, flg. 6 234 



Cephalopoda. 



Orthocerag, A act 234 



O. cn'6ro«twi, Geinitz, 1866, pL XI, flgs. 18 a, 6 234 



Natitihig, Liun 234 



y. occidentalls, Swallow, 1858, pl.xi, flg.l7 234-236 



N.ponderogug, 'White, M.S., 1872, pi. iii, flgs. 7 a, 6 236 



Artictilata. 



Crustacea. 



CyUiere, MuUer 237 



G. nebragcensig, Geinitz, 1866, pi. xi, flg8.2; and 3 a, b? 237 



Gythere, sp., pi. xi, flgs. 1 a-d 237 



PhiUipgia, Portlock 237 



PhilHpsia, sp., Geiuitz, 1866, pi. iii, figs. 1 a,b 237-238 



P.gcUula, M. &W., 18C5, pi. vi, flg. 9 238 



P. major, Shumard, 1858, pi. iii, flgs. 2 a-c 238-239 



Meek, F. B. [Geological repoi-ts on Miller, Morgan, aud Saline Counties, Missouri.] 

 <^Report8 on the Geological Survey of the State of Missouri, 1855-'71, by G. C. 

 Broadbead, F. B. Meek, and B. F. Shumard, chapters vii-ix, pp. 111-188. Jeffer- 

 son City, 1873. 



Geological maps of Miller and Morgan Counties accompany these reperts. 



Chaptke VII. 



Page. 



Miller County 112 



Streams 112 



Springs 114 



Timber 115 



Geological structure of Miller County .' 115 



Quaternary system. — Alluvium 117 



Carboniferous system 118 



Lower Silurian rocks. — Saccbaroidal sandstone 118 



