. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Geological History of Plants, ed. 1888, page 81, fig. 30; a a group of young leaves; b point and G base of a leaf; d the vena- tion mag- nified. — Erian or D e V o n - ian ) of New Br u n s- wic k. VIIL Cornulites arcuatus. Hall Geological Report on the V-li. ^-^^.^^^ Fourth District N. Y. 1843, page 109, fig. 39-3. Niagara formation. (Conrad, Journ. Acad. Nat. Sci. Phila. Vol. viii, 1848. Plate 17, fig. 8.) Compare Tenta- culites. It is composed of a series
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Geological History of Plants, ed. 1888, page 81, fig. 30; a a group of young leaves; b point and G base of a leaf; d the vena- tion mag- nified. — Erian or D e V o n - ian ) of New Br u n s- wic k. VIIL Cornulites arcuatus. Hall Geological Report on the V-li. ^-^^.^^^ Fourth District N. Y. 1843, page 109, fig. 39-3. Niagara formation. (Conrad, Journ. Acad. Nat. Sci. Phila. Vol. viii, 1848. Plate 17, fig. 8.) Compare Tenta- culites. It is composed of a series of cup- like discs, inserted one within another at their margins; rounder than those of the English Wenlockfossil Cornulites serpularius (Sil. Research, p. 627, pi. 26, f. 5) and is easily distinguished from any other fossil of the Silurian system. Occurs as isolated specimens in the Rochester limestone; in groups of specimens at Lockport, in cavities partly filled with spar. Usually nearly destroyed; in- vested with crystals; sometimes only the central tube remains (Hall).—F 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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