. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Pinnularia crassa, Dawson, Ac. Geol. XIII. Pinnularia dispalans. Dawson, Acadian Geology, 1868, page 555, fig. 194 L. Upper Devonian shale at St. John, N. B.— VIII-IX, Pinnularia elongata, Dawson, Foss. L Plants, Canada, 1871. YIII-IX. Piniiularia ficoides, Lesq. See figure above. Pinnularia horizontalis, Lesq. See figure above. Pinnularia nodosa, Daws. 1871. VIII-IX. Pinnularia palmatifida, Lesq. 1858. XIII, Pinnularia pinnata, Lesq. See figure above. Pinnul
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. Pinnularia crassa, Dawson, Ac. Geol. XIII. Pinnularia dispalans. Dawson, Acadian Geology, 1868, page 555, fig. 194 L. Upper Devonian shale at St. John, N. B.— VIII-IX, Pinnularia elongata, Dawson, Foss. L Plants, Canada, 1871. YIII-IX. Piniiularia ficoides, Lesq. See figure above. Pinnularia horizontalis, Lesq. See figure above. Pinnularia nodosa, Daws. 1871. VIII-IX. Pinnularia palmatifida, Lesq. 1858. XIII, Pinnularia pinnata, Lesq. See figure above. Pinnularia ramocissima, Dawson, Acadian Geology, 1868, ,65 p. 444, fig. 165, D ;'^slen. der roots, or stems branching in a pinnate manner and somewhat Dawson irregularly;" abundant in coal shales; probably the aquatic roots of Calamites^ etc.; always flattened; originally round, with a thread like axis of ladder shaped vessels, in a soft smooth cellular bark. (Dawson) —XIII ( Omitted from page 645^ ahove.) Piloceras explanator, Whitefield, Bull. Amer. Mus. N. H., N. Y., Vol. 1, No. 8,1886, p. 323, fig. 1, side view of lower end of large shell, the siphon protruding below the broken septa; the upper part (not figured) having five more chambers, beside the outer chamber, making the whole specimen eight inches long above the siphon ; fig. 2 (only the lower end preserved), longitudinal section of a specimen, a^ a, the solid part of the siphon, 5, solid matter filling the cavity; fig. 3 (cut ofi" above), a large siphon broken open lengthwise ; ^, the siphonal cavity ; d^ solid matter filling it; a, a layer of deposits which separates it from those below ; 5, several thinner layers of deposit, but not septa; c, a faulted layer apparently interrupted in its growth ; fig. 4, see also wood cut on p. 434. See Whitfield's dis. cussion of Salter's genus and his own spicies on pp. 324, 326 — Fort Cassin, Vt. Birdseye limestone lie.—{Fig, on p. 650,). Please note that these image
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