. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. /K 386, plate 13, figs. 12 a, 5, I^© <?9 concave face, convex nearly perfect, and quite unique fish-tooth, found in the War- saw limestone heds^ a mile above Pisa creek. 111. ^XI? Polyrhizodus ponticulus, Newberry & Worthen, Geo. Sur. 111., Vol. 2, 1866, page 51, plate 3, figs. 11,11 a^ natural sizet f $' front view, and profile'; the roots .^tfir of this fish-tooth curiously sug- gests a stone arched bridge, whence its name. Classed with McCoy's Irish
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. /K 386, plate 13, figs. 12 a, 5, I^© <?9 concave face, convex nearly perfect, and quite unique fish-tooth, found in the War- saw limestone heds^ a mile above Pisa creek. 111. ^XI? Polyrhizodus ponticulus, Newberry & Worthen, Geo. Sur. 111., Vol. 2, 1866, page 51, plate 3, figs. 11,11 a^ natural sizet f $' front view, and profile'; the roots .^tfir of this fish-tooth curiously sug- gests a stone arched bridge, whence its name. Classed with McCoy's Irish P. magnus^ but not his P. pusUlus. Chester, 111. Chester limestone. XI, Polyrhizodus porosus, Newberry & Worthen, Geo. Sur. 111. Vol. ,2,1866, page 49, plate 3, figs. 9, 9^, natural size^ hind face and section of the largest found fish tooth, thick and massive, dif- fering somewhat from McCoy's Irish P. magnus; Burlington., and Quincy, 111., Burlington limestone (next to the bottom division of subcarboniferous.) XL Polyrhizodus williamsi, St. John & Worthen, Geo. Sur. 111., Vol. 6, 187 5, page. XI. Geo/.J//,i^l2,n:^ a cL. .J* #no. 25"b c O Ji 1^^^ ^S^S^ 384, plate 13. (^^^VoLIP fig. n^, con- cave face, showing toothshaped root of this tooth ; 5, crown and triturating convex surface; c, profile; plate 10 A. figs. 23«, 5j Boonville and Keokuk, Mo. and Iowa. Upper fish-bed of the Keohuh limestone, XI, {Polysporia) Lepidostrobus mirabilis, Newberry, Pal Ohio, Vol. 1,1873, page 362, plate 41, fig. 5, a'^'cone, showing the arrangement of the seed cases (sporangia); ha,, a detached sporangium containing microspores ; fig. 6, summit of cone sur- rounded by a mass of spores escaped from the sporangia, 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), 181
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectpaleontology, bookyea
