. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Conularia gracilis. (Hall, Pal. N. Y., Vol. I, 1847, Tren- ton group.) Emmons' American Geol- ogy, Vol. I, part 2, page 207, plate 16, figs. 7 <^, 7 h ; slightly arcuate; surface marked with deep wavy cross lines; the lines lengthwise rather indistinct. All the Gonularias are pyramidal pteropods, with delicate texture " like a woven fabric;" solid top (apex), "separated from the open shell above by a simple imperforate very convex
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Conularia gracilis. (Hall, Pal. N. Y., Vol. I, 1847, Tren- ton group.) Emmons' American Geol- ogy, Vol. I, part 2, page 207, plate 16, figs. 7 <^, 7 h ; slightly arcuate; surface marked with deep wavy cross lines; the lines lengthwise rather indistinct. All the Gonularias are pyramidal pteropods, with delicate texture " like a woven fabric;" solid top (apex), "separated from the open shell above by a simple imperforate very convex ; Em- mons refers to a specimen in his collec- |;^^^*T855, tion to prove that there is no perfora- tion.—Trer^^o/i formation. //c—Hall says that this species is rare as compared with the abundant C. trentonensis^ and that its shell seems very thin and fragile. Conularia granulata. (Hall, Pal. N. Y., Vol. 1, 1847, Trenton.) Em- l^OTraniWj ^ons' Am. Geol* ^Pl^^^I, ii, p. 207, plate 16, figs 5, magnified. Trenton lime- stone formation. // c.—The lines which traverse this shell lengthwise are probably wrinkles from pressure. Hall. Conularia hudsoni. Emmons' American Geology, I, ii, 1855, p. 208, woodcut fig. 65; a long pyramid, with nearly equal sides; furrows meeting at 130^; edges of a side diverge at about 25° ; both sets of striae stronger than in C. trent.^ 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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