. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 516, f. 191; Canad. Nat. Vol. 6, p. 173, fig. 9, from Perry & St. John; as in the Chemung-CatsMll strata about Montrose, Sus- quehanna Co., Pa., as described by Hall. YIII-IX. Cyclopteris valida. See Appendix. Cydostoma pervetusta. See Pleurotomaria pervetusta, ( al so Eiio mphalus pervetustus.) IV. Cyphaspis christyi, (Hall, Trans. Alb. Inst. 1863, Vol. 4.) Collett^s Indiana Rt. 1881, page 333, plate 34, fig. 5, head enlarged tivice; fig. 6, entire trilo
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 516, f. 191; Canad. Nat. Vol. 6, p. 173, fig. 9, from Perry & St. John; as in the Chemung-CatsMll strata about Montrose, Sus- quehanna Co., Pa., as described by Hall. YIII-IX. Cyclopteris valida. See Appendix. Cydostoma pervetusta. See Pleurotomaria pervetusta, ( al so Eiio mphalus pervetustus.) IV. Cyphaspis christyi, (Hall, Trans. Alb. Inst. 1863, Vol. 4.) Collett^s Indiana Rt. 1881, page 333, plate 34, fig. 5, head enlarged tivice; fig. 6, entire trilobite, enlarged twice; fig. 7, profile of same. Thorax (body) has twelve segments, highly con- vex, deeply lobed. Species dif- fers from all others by its long head, and proportions of body. Hall.—Niagara formation. V b. 1^ Cyperaceae seeds are fossilized in the peat bogs in which the curious elastic black mineral dopplerite is found, as at Scranton, Pa. (An. Rt. 1885, p. 649). At Zurich Prof. Heim. 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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