. A bibliography of North American paleontology [microform] : 1888-1892. Paleontology; Paléontologie. I ^,m ili i«: ii. !!.i. 126 BIBLIOGHAPKY OF NORTH AMERICAN PALEONTOLOGY, [mull. 121, Keyes, Chailes R. KeniarkH on Femuiuic Plates of the Crinoids. (Am. Jour. Sci., (3), Vol. XLi, pp. 247,248. New Haven, 1891.) Some brief notes on the striip. tare of species recently described. Keyes, Charles R. Review of Progress of Amerioun Invertebrate Paleontology for the year 1890. (American Naturalist, Vol. xxv, pp. 327-333. Philadelpliia, 1891.) A brief account of the American ]>apers published durin
. A bibliography of North American paleontology [microform] : 1888-1892. Paleontology; Paléontologie. I ^,m ili i«: ii. !!.i. 126 BIBLIOGHAPKY OF NORTH AMERICAN PALEONTOLOGY, [mull. 121, Keyes, Chailes R. KeniarkH on Femuiuic Plates of the Crinoids. (Am. Jour. Sci., (3), Vol. XLi, pp. 247,248. New Haven, 1891.) Some brief notes on the striip. tare of species recently described. Keyes, Charles R. Review of Progress of Amerioun Invertebrate Paleontology for the year 1890. (American Naturalist, Vol. xxv, pp. 327-333. Philadelpliia, 1891.) A brief account of the American ]>apers published during the WM, Keyes, Chiurles R. Review of Progress of American Invertebrate Paleontology for 1889. (American Naturalist, Vol. xxiv, pp. 131-138. Philadelphia, 1890.) A list of the papers anrodoma: A Genus of Fossil Gasteropoda. (Proc. Acad. Nat. Sci., Phila., ])p. 303-309. Philadelidiia, 1889.) The genus described us new and the American forms to be referred to it are tabulated and their full synonymy given. Keyes, Charles R. Stratigraphy of Carboniferous in Central Iowa. (Bui. Geol, Soc. America, Vol. 11, pp. 277-292, 2 plates. 1891.) There is given a lull description of the various sections ex])08ed along the Des Moines River in the central part of the State, special reference being made to the lithological characters of the strata, and the stratigraphical relations of the various IkmIs. Several marked unconformities are described and illustrated, and the leading faunal asji ' s 'f tlie region tabulated. Keyes, Charles } dentary Habits of Platyceras. (Am. .Four. Sci., (3,) \'ol. XXXVI, i»p. 26 . ,::', New Haven, 1888.) Notes on habits of various species, as deduced from observations made on fossils. The attachment of the gaster- opods to crinoids described and its significance pointed out. Keyes, Charles R. Subgenerio Groups of Naticoi)si8. (American Geologist, Vol. IV, pp. Minneapolis, 1889.) The various genera and minor groups related to the genus described
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