. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 847 Pychn, Logan's section of the S. Joggins), a bed of fine mud rock (2 inches thick); the shells abundant and perfect, except being flattened by the subsequent pressure of Coal measure sedi- ments, and in all stages of growth, the young having a very dif- ferent shape from the old. There is every reason to expect to find such land shells in the Pennsylvania coal measure mud layers. XIII. Pycnostylus elegans, Whiteaves. G. S. Can. Pal. Foss TIJ, fi< Y
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. 847 Pychn, Logan's section of the S. Joggins), a bed of fine mud rock (2 inches thick); the shells abundant and perfect, except being flattened by the subsequent pressure of Coal measure sedi- ments, and in all stages of growth, the young having a very dif- ferent shape from the old. There is every reason to expect to find such land shells in the Pennsylvania coal measure mud layers. XIII. Pycnostylus elegans, Whiteaves. G. S. Can. Pal. Foss TIJ, fi< Y^S^' - ^ ^ Wkileaoes, ^^' Pal. Can. ///, 4. Ill, part 1,1884, page 4, plate 1, fig. 2, showing the mode of budding''(one bud^being \\ in. long) from others broken off at the base; entire circle probably seven or eight buds; possi- bly P. guelphensis denuded of epitheca; 2a, natural section of a part of the corallite, exhibiting its complete tabulae, and marginaFsepta. Found at Hespeler, and at Durham, Canada West. Ouelph formation. VV. Pycnostylus guelphensis, Whiteaves ( ? Amplexiis hull- \j^l /.A mi<.:-^. 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
