. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Proetus folliceps, Hall, Pal. N. Y., Vol. 7, 1888, page 101, plate 23, figs. 3, a tril- obite, with all but its crust in fragments, showing the round glabella and its furrows; 4, profile view of it showing the convexity of the body. (See Hall's remarks on the median pits upon alternate grooves; and on Walcott's discovery of a ventral membrane possessed by some species of trilobites.) Found at many places along the New York outcrop of the Comiferous limestone.


. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Proetus folliceps, Hall, Pal. N. Y., Vol. 7, 1888, page 101, plate 23, figs. 3, a tril- obite, with all but its crust in fragments, showing the round glabella and its furrows; 4, profile view of it showing the convexity of the body. (See Hall's remarks on the median pits upon alternate grooves; and on Walcott's discovery of a ventral membrane possessed by some species of trilobites.) Found at many places along the New York outcrop of the Comiferous limestone. Villa, H. 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