. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. z\ne\ Poroblattina arcuata, Scudder. A cockroach from Trias. Poroblattina lakesii, Scudder. A cockroach from the Trias^ near Fairplay, Colorado. Proceed- ings of the Academy of Natural Sciences^ Phila., 1885, p. 39. Fig. 936, {magniAed three times) in Zittel's handbuch.—Trias,. 936 Posidonias, little ostracoid lamellibranch shells, lived in incredibly great numbers in the Upper Coal measure and Upper Barren measure ages. See Stevenson's references to their ab
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. z\ne\ Poroblattina arcuata, Scudder. A cockroach from Trias. Poroblattina lakesii, Scudder. A cockroach from the Trias^ near Fairplay, Colorado. Proceed- ings of the Academy of Natural Sciences^ Phila., 1885, p. 39. Fig. 936, {magniAed three times) in Zittel's handbuch.—Trias,. 936 Posidonias, little ostracoid lamellibranch shells, lived in incredibly great numbers in the Upper Coal measure and Upper Barren measure ages. See Stevenson's references to their abundance (with fish teeth and scales in thereof shales of both the Lower and Upper Washington coals,, and other higher strata of S. W. Pennsylvania (K 3, p. 306.) Dr. Isaac Lea of Phila- delphia, in 1853, Jour. Acad. Nat. Sci. [2] Vol. 2, described three species P, clathrata, P. distans^ P, perstriata; and Mr. Gabb, in 1859, Proc. Acad. N. S., Phila., a fourth P, moorei^ all from the Pennsylvania coal measures. XF, XVL Posidonia ? alata. Hall. Geology of Western New York, V' .^^^!^»K^ 1^43, page 72, fig. 17, 7. Clinton form, Va, Posidonia alveata^ now Grammysia. Posidonia arcuata^ now Grammysia. Posidonia lirata, now 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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