. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. SOI, Miller and Giir- . 12, 111. St. Mils. iKknukia Gi*. 893,4th Ann. Kep. Is largt' and .'etiiin- il ridgea. Sutures if Discitoccras, cx- )rrelate with the lateral zonest)f the l)eing Itroader -and on the zones, tlian pe T. ilepreiiiinw. 1893, 4th Ann. Kep. 432, Siihcarhonif- !93, 4th Ann. Hep. 430, Siibcarboiiif- ^3, I'roc. Bost. Soc. 289. [Kty. Titan, ; kcniK, horn.] Tlie A'er abdomen than longer abdonino- nd i
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. SOI, Miller and Giir- . 12, 111. St. Mils. iKknukia Gi*. 893,4th Ann. Kep. Is largt' and .'etiiin- il ridgea. Sutures if Discitoccras, cx- )rrelate with the lateral zonest)f the l)eing Itroader -and on the zones, tlian pe T. ilepreiiiinw. 1893, 4th Ann. Kep. 432, Siihcarhonif- !93, 4th Ann. Hep. 430, Siibcarboiiif- ^3, I'roc. Bost. Soc. 289. [Kty. Titan, ; kcniK, horn.] Tlie A'er abdomen than longer abdonino- nd is more eom- liaped. There is a i)ne on the dorsum, narrow dorsal lobe. , 1872, (Nautilus :. Neb., |). 236, Goal B is desei'ibed and Gieol., vol. 7. |». 426. 1883, I'roo. Bost. 22, 1). 287. [Ety. tool; , iiorn.] nite; venter Hat- than the dorsum pex of the subtri- phon ventral, num- uate in the young, full-grown. Type Orthoceras iiasta- ;enus may also be ivexum. Geo. Sur. Minn., m Gr. tead of Gyroceras , ilyatt, 1894. Pruc. >,,TreiitonGr. oc. Am. Phil. Soc, Hiv. Gr. tKeld, 1886, (Lit- s,) Bull. Am. Mus. 332, Oalciferoiis Gr. t, 1894, Proe. Am. 480. [Ety. from is; krrax, horn.] [I from Trocholites siphuncle ventral e earlier substages ype T, wahoftl. Proc. Am. Phil, ('alciferous Gr. ACT.—BI,A. LAMILLIBRANCHtA I A. 11^ CLASS LAMILLIBRANCHIATA. Actinumija, Ulrich, Syn. for Modiolopsis. kentonen»iH, Syn. for Modiolopsis ein- "cinnatiensis. suhcarinata, Syn. for Modiolopsis mod- ioliformis. Allodi'sma, Ulrich, 1894, Geo. Sur. Mimi., p. 617. Probably founded on a poor cast of an Orthodesma. There are no characters ascribed to it that can be i called generic. The author of the ge- ' nus refers it to the Cycloconchida>, and attempts to establish it, upon the forms he had shortly before described, with confidence, under the name of Afodlo- lopxiit .'iuhellipiled Allonjicliiit, Ulrich, Syn. for Ambonychia. Founded on Ambonychia jamesi. j iirtitn, Syn. for Ambo
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