. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. r-r Sc, \ , thyris acutilirata. Conrad, Jour. Acad. Nat. Sci. Phila. Vol. 8, 1842, Cincinnati group,) Pal. Ohio, Vol. 1, 1873, p. 119, pi. 10, figs. 5 a, ventral view of rather large adult; 5, back view, hinge area, incurved beaks; <?, front; d^ back of a more trans- verse specimen ; ^, ventral interior, deep scars, hinge area, hole (foramen), hinge teeth, but the comb structure near the teeth does not always occur; /*, back of another specimen; g, mag- ni
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. r-r Sc, \ , thyris acutilirata. Conrad, Jour. Acad. Nat. Sci. Phila. Vol. 8, 1842, Cincinnati group,) Pal. Ohio, Vol. 1, 1873, p. 119, pi. 10, figs. 5 a, ventral view of rather large adult; 5, back view, hinge area, incurved beaks; <?, front; d^ back of a more trans- verse specimen ; ^, ventral interior, deep scars, hinge area, hole (foramen), hinge teeth, but the comb structure near the teeth does not always occur; /*, back of another specimen; g, mag- nified grained surface, common to all the other varieties of 0, liforata,, where well preserved.— Cincinnati,^ Illh. Orthis {Platystrophia) biforata, Var. dentata. {Poram- honites dentatus,, Pander, Beit rag. Geol. Russ. 1830.) Pal. Ohio, Vol. 1, 1873, p. 117, pi. 10, fig. 3 a^ back view of a specimen with two folds in the mesial fold, and. 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 Lesley, J. P. (J. Peter), 1819-1903; Pennsylvania. Board of Commissioners for the Second Geological Survey. Harrisburg, Board of Commissioners for the Geological Survey
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectpaleontology, bookyea
