McEwan, E. D., 1920, A study of the brachiopod genus Platystrophia: U.S. Natl. Mus. Proc., v. 56, p. 383-448.
McFarlan, A. C., and others, 1955, Some old Chester problems C Correlations of lower and middle Chester formations of western Kentucky: Kentucky Geol. Survey, ser. 9, Bull. 16, 37 p.
McGee, W. J., 1891, Pleistocene history of northeastern Iowa: U.S. Geol. Survey Ann. Rept. 11, pt. 1, p. 189-577.
McGrain, Preston, 1943?, The St. Louis and Ste. Genevieve Limestones of Harrison County, Indiana: Indiana Acad. Sci. Proc., v. 52, p. 149-162.
McGrain, Preston, 1969, Extension of Lost River Chert across parts of Kentucky: Am. Assoc. Petroleum Geologists Bull., v. 53, p. 1506-1507.
McGregor, D. J., 1954, Gypsum and anhydrite deposits in southwestern Indiana: Indiana Geol. Survey Rept. Prog. 8, 24 p.
McGuire, W. H., and Howell, Paul, 1963, Oil and gas possibilities of the Cambrian and Lower Ordovician in Kentucky: Lexington, Ky., Spindletop Research Center, 128 p.
McQueen, H. S., 1937, Dutchtown, a new Lower Ordovician formation in southeastern Missouri: Missouri Geol. Survey and Water Resources 59th Bienn. Rept., 1935-36, 27 p.
Malott, C. A., 1919, The "American Bottoms" region of eastern Greene County, Indiana C A type unit in southern Indiana physiography: Indiana Univ. Studies, v. 6, no. 40, 61 p,
Malott, C. A., 1921, Some special physiographic features of the Knobstone cuesta region of southern Indiana C An example of explanatory physiography: Indiana Acad. Sci. Proc. for 1919, p. 361-383.
Malott, C. A., 1922, The physiography of Indiana, in Logan, W. N., and others, Handbook of Indiana geology: Indiana Dept. Con-serv. Pub. 21, pt. 2, p. 59-256.
Malott, C. A., 1923, Geologic map of Perry County, Indiana, showing . . . readily traceable and recognizable members of the Chester Series . . .: [privately issued, blueprint copy].
Malott, C. A., 1925, The upper Chester of Indiana: Indiana Acad. Sci. Proc., v. 34, p. 103-132.
Malott, C. A., 1931, Geologic structure in the Indian and Trinity Springs locality, Martin County, Indiana: Indiana Acad. Sci. Proc., v. 40, p. 217-231.
Malott, C. A., 1937, Murphys Bluff and Hayden Branch Formations, in Payne, K. A., Pennsyivanian Ostracoda from Sullivan County, Indiana: Jour. Paleontology, v. 11, p. 277-279.
Malott, C. A., 1939, The Hazelton Bridge Formation of the Upper Pennsylvanian of southwestern Indiana [abs.]: Indiana Acad. Sci. Proc., v. 48, p. 114.
Malott, C. A., 1945, Rosiclare and Aux Vases Sandstones in southern Indiana [abs.]: Geol. Soc. America Bull., v. 56, p. 1180.
Malott, C. A., 1946, The geology of Cataract Falls, Owen County, Indiana: Jour. Geology, v. 54, p. 322-326.
Malott, C. A., 1948, The geology of the Dicksburg Hills, Knox County, Indiana: Indiana Acad. Sci. Proc., v. 57, p. 125-141.
Malott, C. A., 1952, Stratigraphy of the Ste. Genevieve and Chester formations of southern Indiana: Ann Arbor, Mich., Edwards Letter Shop, 105 p.
Malott, C. A., and Esarey, R. E., 1940, Outcrop of the Chester Series of southern Indiana: Indiana-Kentucky Geol. Soc., May 18, 1940, 9 p. [mimeo.]
Malott, C. A., Esarey, R. E., and Bieberman, D. F., 1948, Upper and Middle Mississippian formations of southern Indiana: Indiana Div. Geology Field Conf. Guidebook 2, 26 p.
Malott, C. A., and Thompson, J. D., Jr., 1920, The stratigraphy of the Chester Series of southern Indiana [abs.]: Science, new ser., v. 51, p. 521-522.
Mamet, B. L., and Skipp, B. A., 1971, Lower Carboniferous calcareous Foraminifera C Preliminary zonation and stratigraphic implications for the Mississippian of North America: Sixieme Cong. Internat. Stratigraphie et Geologie Carbonifere Sheffield, 1967, Compte rendu, v. 3, p. 1129-1146.
Mathews, G. D., and Sunderman, J. A., 1975, Lithologic variability in the Mississinewa Shale and its petrogenetic implications, in Sunderman, J. A., and Mathews, G. D., eds., Silurian reef and interreef environments: Fort Wayne, Indiana Univ.-Purdue Univ. Dept. Earth and Space Sci., p. 54-65.
Matthews, R. D., 1983, Foerstia from the Antrim Shale (Devonian) of Michigan: Geology, v. 11, p. 327-330.
Meek, F. B., and Worthen, A. H., 1861, Remarks on the age of the Goniatite Limestone of Rockford, Indiana, and its relation to the "Black Slate" of the western states, and to some of the succeeding rocks above the latter: Am. Jour. Sci., ser. 2, v. 32, p. 167-177.
Meents, W. F., and Swann, D. H., 1965, Grand Tower Limestone (Devonian) of southern Illinois: Illinois Geol. Survey Circ. 389, 34 p.
Melhorn, W. N., 1958, Revision of Mississippian-Devonian boundary in White and Benton Counties, Indiana: Indiana Acad. Sci. Proc., v. 67, p. 194-198.
Mesolella, K. J., 1978, Paleogeography of some Silurian and Devonian reef trends, central Appalachian Basin: Am. Assoc. Petroleum Geologists Bull., v. 62, p. 1607-1644.
Miller, A. K., and Collinson, Charles, 1951, Lower Mississippian ammonoids of Missouri: Jour. Paleontology, v. 25, p. 454-487.
Miller, A. M., 1905, The lead and zinc bearing rocks of central Kentucky, with notes on the mineral veins: Kentucky Geol. Survey Bull. 2,
Moore, M. C., and Rexroad, C. B., 1974, Age and origin of stone quarried near Fort Wayne in the mid-1800's: Indiana Geol. Survey Occasional Paper 4, 7 p.
Mound, M. C., 1968, Arenaceous Foraminiferida and zonation of Silurian rocks of northern Indiana: Indiana Geol. Survey Bull. 38. 126 p.
Neavel, R. C., 1961, Petrographic and chemical composition of Indiana coals: Indiana Geol. Survey Bull. 22, 81 p.
Neves, R., and others, 1972 $ A scheme of miospore zones for the British Dinantian: Septieme Cong. Internat. Stratigraphie et Giologie Carbonifere Krefeld, 1971, Compte rendu, v. 1, p. 347-353.
Newberry, J. S., 1871, Report on the progress of the Geological Survey of Ohio in 1869: Ohio Geol. Survey, pt. 1, p. 1-53.
Newcombe, R. B., 1932, Geology of Muskegon oil field, Muskegon, Michigan: Am. Assoc. Petroleum Geologists Bull., v.16, p. 153-168.
Newcombe, R. B., 1933, Oil and gas fields in Michigan, a discussion of depositional and structural features of the Michigan Basin: Michigan Geol. Survey Pub. 38, Geol. Ser. 32, xi + 293 p.
Newton, W. A., and Weller, J. M., 1937, Stratigraphic studies of Pennsylvanian outcrops in part of southwestern Illinois: Illinois Geol. Survey Rept. Inv. 45, 31 p.
Nickles, J. M., 1902, The geology of Cincinnati: Cincinnati Soc. Nat. History Jour., v. 20, no. 2, p. 49-100.
Nickles, J. M., 1903, The Richmond Group in Ohio and Indiana and its subdivisions, with a note on the genus Strophomena and its type: Am. Geologist, v. 32, p. 202-218.
Nicoll, R. S., and Rexroad, C. B., 1968, Stratigraphy and conodont paleontology of the Salamonie Dolomite and Lee Creek Member of the Brassfield Limestone (Silurian) in southeastern Indiana and adjacent Kentucky: Indiana Geol. Survey Bull. 40, 73 p.
Nicoll, R. S., and Rexroad, C. B., 1975, Stratigraphy and conodont paleontology of the Sanders Group (Mississippian) in Indiana and adjacent Kentucky: Indiana Geol. Survey Bull. 51, 33 p.
North, W.G., 1969, The Middle Devonian strata of southern Illinois: Illinois Geol. Survey Circ. 441, 48 p.
North American Commission on Stratigraphic Nomenclature, 1983, North American Stratigraphic Code: Am. Assoc. Petroleum Geologists Bull., v. 67, p. 841-875.
Norwood, C. J., 1876, Report on the geology of the region adjacent tn the Louisville, Paducah, and Southwestern Railroad: Kentucky Geol. Survey Rept. Prog. 1, new ser., p. 355-448.
Okla, S. M., 1976, Subsurface stratigraphy and sedimentation of Middle and Upper Silurian rocks of northern Indiana [Ph. D thesis]: Bloomington, Indiana Univ.,153 p.
Oliver, W. A., Jr., 1968, Succession of rugose coral faunas in the Lower and Middle Devonian of eastern North America, in International Symposium of the Devonian System: Alberta Soc. Petroleum Geologists, v. 2, p. 733-744.
Oliver, W. A., Jr., 1976 $ Noncystimorph colonial rugose corals of the Onesquethaw and lower Cazenovia Stages (Lower and Middle Devonian) in New York and adjacent areas: U.S. Geol. Survey Prof. Paper 869, 156 p.
Orr, R. W., 1964, Conodonts from the Devonian Lingle and Alto Formations of southern Illinois: Illinois Geol. survey Circ. 361, 28 p.
Orr, R. W., 1969, Stratigraphy and correlation of Middle Devonian strata in the Logansport Sag, north-central Indiana: Indiana Acad. Sci. Proc., v. 78, p. 333-341.
Orr, R. W., 1971, Conodonts from Middle Devonian strata of the Michigan Basin: Indiana Geol. Survey Bull. 45, 110 p.
Orr, R. W., and Pierce, W. H., 1973, The type section of the Pendleton Sandstone: Indiana Acad. Sci. Proc., v. 82, p. 326-334.
Orr, R. W., and Pollock, C. A., 1968, Reference sections and correlation of Beechwood Member (North Vernon Limestone, Middle Devonian) of southern Indiana and northern Kentucky: Am. Assoc. Petroleum Geologists Bull., v. 52, p. 2257-2262.
Orton, Edward, 1873, Report on the third geological district C Geology of the Cincinnati Group and of Hamilton, Clermont, Warren, Butler, and Clarke Counties: Ohio Geol. Survey Rept., v. 1, pt. 1, p 365-480.
Owen, D.D., 1839, Second report of a geological survey of Indiana, made in the year 1838, in conformity to an order of the legislature: Indiana Senate Jour. for 1838-39, p. 198-241 Indianapolis, Osborn and Willets, 54 p.
Owen, D.D., 1847, Preliminary report of the geological survey of Wisconsin and Iowa: U.S. Gen. Land Office Rept., 1847, p. 160-173.
Owen, D.D., 1856, Report of the geological survey in Kentucky, made during the years 1854 and 1855: Frankfort, Ky., 416 p.
Owen, D.D., 1857, Second report of the geological survey in Kentucky, made during the years 1856 and 1857: Frankfort, Ky., A. G. Hodges, Public Printer, 391 p.
Owen, D.D., 1859, Report of a geological reconnaissance of the State of Indiana made in the year 1837, pt. 1: Indianapolis, 63 p.
Owen, D. D., and Norwood, J. G., 1847, Researches among the Protozoic and Carboniferous rocks of central Kentucky made during the summer of 1846: St. Louis, Keemle and Fields, 12 p.
Owens, R. N., 1981, Petrologic analysis of the Mississinewa Member of the Wabash Formation and the effect of reef proximity on interreef sedimentation [M.S. thesis]: Muncie, Ind., Ball State Univ., 83 p.