. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Platycrinus contritus, Hall. Crinoids of the Waverly sandstone of Ohio, 1863, Pal. Ohio, Vol. 2,1875, page 166, plate 11, fig. 4, a specimen showing the peculiar form of the basal plates; the arms, preserved for half their length showing the mode of bifurcation; column unknown; ^y belongs to type of P. hurlingtonensis and its varieties. Waverly shales of Summit Co., O. /}^f—Pocono formation^ X, » Platycrinus corrugatus. Owen and Shumard, 1852, pi. 5A. f. 2, a
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Platycrinus contritus, Hall. Crinoids of the Waverly sandstone of Ohio, 1863, Pal. Ohio, Vol. 2,1875, page 166, plate 11, fig. 4, a specimen showing the peculiar form of the basal plates; the arms, preserved for half their length showing the mode of bifurcation; column unknown; ^y belongs to type of P. hurlingtonensis and its varieties. Waverly shales of Summit Co., O. /}^f—Pocono formation^ X, » Platycrinus corrugatus. Owen and Shumard, 1852, pi. 5A. f. 2, a, b, c, (d), e, showing corrugated surface o f sc apular plate; Bur- ling, lime, Iowa.—XL Platycrinus discoideus. Owen & Shumard, Geol. of Wis. etc., plate 5A, fig. 1, a, b, show- ing the form of the surface to which c^^i the arms of this stone lily was jointed into the cup or head. Burlington limestone^ Iowa.—XL Platycrinus graphicus, Hall 17th Rt. Crinoids of the Waverly sand ston e, O h i o, 1863.—Pal. Ohio Vol. 2, > 1875, page 166, plate 11, fig. 2; b ody plate broken and crushed; showing mode of forking of the arms 5 surface of plates obscurely marked by radiating lines of nodes; column of alternate thick and thin joints; differs from P, con- tritus in having longer and slenderer arms, and only 4 from each. 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
