. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Kio NlHâEdmondla aHpeiiwall- t>MHiM. UiKlit valve. name] Shell equivalve, inequilateral, tumid, abort, oblonK or rounded, cloHed all around; dorsal and ventral margins Hliglitly *u>nvex ; beaks tumid, with an imprt'HHed lunette between them; sur- faw with nonoontricstriic: , but an internal lamellar oartilat^o support, much dilated within the cavity of the lieuks, the broad end forming the slits il
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Kio NlHâEdmondla aHpeiiwall- t>MHiM. UiKlit valve. name] Shell equivalve, inequilateral, tumid, abort, oblonK or rounded, cloHed all around; dorsal and ventral margins Hliglitly *u>nvex ; beaks tumid, with an imprt'HHed lunette between them; sur- faw with nonoontricstriic: , but an internal lamellar oartilat^o support, much dilated within the cavity of the lieuks, the broad end forming the slits ill casts coinciding with the edges of the anterior lunette, and \\w posterior end running nearly parallel to and close within the hinge-line; dorsal margins erect and simple; two simple adductor impressions, often with an accesHory impression over each, pallial scar sim- ple, entire. Type K. unioniformis. (â¢â quimargin- alis, Win- chell, 18(12, (Cardinia a>quim a r- ginal is,) P r o c . Acad. Nat. Hci.,, Marshall Gr. anom ala , Dawson, \m? Acad. Geo., p. \W>, Carb. iiHpenwallensis, Meek, 1871, Havden's Ilep. Sur. Wyoming, p. 299, and Pal. E. .Neb., v. 2i6, Coal Meas. bicarinata, Winchell, 1863, Proc. Acad. Nat. Sci., p. 13, Marshall Gr. Prof. Hall regards this as a syn. for Banguinolites rigidus. ⢠binumbonata, Winchell, 1862, Proc. Acad. Nat. Sci., p. 414, Marshall Gr. burlingtonensis. White & Whitfield, 1862, Proc. Boat. Soc. Nat. Hist., vol. 8, p. 301, and Pal. N. Y., vol. 5, p. 390, Kinder- hook Gr. mlhouni, see Pleurophorus calhouni. circularis, Walcott, 1885, Monogr. U. S. Geo. Sur., vol. 8, p. 246, Carbonif- *'io- 820. - Ed- erous. wane 3"; concentrica, see Astartella Cardinal view, concentrica. depressa, Hall, 1870, Prelim. Notice Lam. Shells, p. 91, and Pal. N. Y., vol. 5, pi. 64, fig. 32, Waverly Gr. ellipsis. Hall, 1886, Pal. N. Y., vol. 5, p. 392, Waverly Gr. elliptica, Winchell, 1863, Proc. Acad. Nat. Sci., p. 13, Marshall Gr. gibbo
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