. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 1, 1847, Hudson group ) Emmons, Am. Geol. I ii, 1855, 173, plate 13, fig. 14; with an obscure keel; fine concentric striae, and a few strong wrinkles along the back ridge. I add from Geol. Canada, 1863, page 216, fig. 224. —Hudson River {Lotaine) formation, Illh. Orthodesma rectum, H. & W. Pal. Ohio, Vol. 2, 1875,. page 95, plate 2, fig. 7, right side of a small specimen; fig. 8, a larger individual, characteristic ; found, with other species of
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 1, 1847, Hudson group ) Emmons, Am. Geol. I ii, 1855, 173, plate 13, fig. 14; with an obscure keel; fine concentric striae, and a few strong wrinkles along the back ridge. I add from Geol. Canada, 1863, page 216, fig. 224. —Hudson River {Lotaine) formation, Illh. Orthodesma rectum, H. & W. Pal. Ohio, Vol. 2, 1875,. page 95, plate 2, fig. 7, right side of a small specimen; fig. 8, a larger individual, characteristic ; found, with other species of Orthodesma^ at Waynesville, 0., in upper soft Hudson River shales. Not readily mistaken except perhaps for 0, curvatum. which however has a contracted base line, and is broader behind. Is somewhat like 0, (Orthonota) parallelum of the N. Y. Had. Riv. formation, which however has a rounded hind end, etc.—/// h. Orthogoniopteris clara, Andrews. Pal. Ohio, Vol. 2, page 419, plate 50, fig. 1, nat. size of the plant; but the fig. does not show the rounding of the base of the upper side of the leaves, which feature is dimly seen in the specimen; 1 «, emlarged nervation. Coal measures. XIIIf — For the Hgure of this plant see page 56Jf. Orthogoniopteris gilberti, Andrews. Pal. Ohio, Vol. 2, 1875, page 420, plate 50, fig. 2, naturalsize^ a plant species of the bottom strata of the coal measures., which shows the upper basal margin of the leaves.—XII^XIII—For the -figure of this plant see page 566,. 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
