. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Orthoceras amycus, Hall. Trans. Alb. Inst. Vol. 10, Collett's Indiana Report of 1881, p. 324, pi. 38, fi^gs. 3, 4. Dif- fers from 0. annulatum in taper, &c. Niagara^ Vb. Orthoceras anceps, Hall. Geology of Canada, 1863, p. 1QS,\A 150, fig. 108 «, specimen showing the siphuncle and septa separating the chambers; J, cross section showing the flattened shape of this ceph- alopod shell, and the position of the siphunclar channel of communica- tion betwe
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Orthoceras amycus, Hall. Trans. Alb. Inst. Vol. 10, Collett's Indiana Report of 1881, p. 324, pi. 38, fi^gs. 3, 4. Dif- fers from 0. annulatum in taper, &c. Niagara^ Vb. Orthoceras anceps, Hall. Geology of Canada, 1863, p. 1QS,\A 150, fig. 108 «, specimen showing the siphuncle and septa separating the chambers; J, cross section showing the flattened shape of this ceph- alopod shell, and the position of the siphunclar channel of communica- tion between the chambers. Tren- ton limestone, II 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
