. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fio. 631.—Trimerella grandls. Cast of dorsal valve. shell thick, and surface concentrically striated; area of pedicle valve longer than wide; deltidium large; hinge thick, elevated, rudely or slightly den- tary; cardinal facet large; crescent well defined; platforms elevated and doubly vaulted, occasionally solid and slightly raised; median plate in both valves, longest in the brachial one. Type T. Fio.
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Fio. 631.—Trimerella grandls. Cast of dorsal valve. shell thick, and surface concentrically striated; area of pedicle valve longer than wide; deltidium large; hinge thick, elevated, rudely or slightly den- tary; cardinal facet large; crescent well defined; platforms elevated and doubly vaulted, occasionally solid and slightly raised; median plate in both valves, longest in the brachial one. Type T. Fio. 632.—Trimerella grandis. Cast of ventral valve. acuminata, Billings, 1862, Pal. Fobs., vol. 1, p. 167, Guelph Gr. billingsi, Dall, 1871, Am. Jour. Conch., vol. 7, p. 82, Guelph Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Miller, S. A. (Samuel Almond), 1836-1897. Cincinnati : [s. n. ]
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
