. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. (Conocephalites vulcanus^ Billings, Tnl ^^^^' ^^^^- ^^' II. 9^2, fig. 7^^*^ 357; Pal. ,,fig. 17; Geol. Vt. 18G3, 286, fig. 296.) Walcott, Bul- I letin No. 30, U. S. G. S. page 1^8, plate 26, fig. 4, compressed spec, from Parker's quarry; fig. 4a, more perfect one from ''Red sandrock " east of Highgate Springs. Lower Cambrian {Georgian) formation, in Vermont. L. C. Ptychophyllum kn^ppi. See page 887. Ptychopteria beeeheri, Hall, Pal. N. Y. Vol.
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. (Conocephalites vulcanus^ Billings, Tnl ^^^^' ^^^^- ^^' II. 9^2, fig. 7^^*^ 357; Pal. ,,fig. 17; Geol. Vt. 18G3, 286, fig. 296.) Walcott, Bul- I letin No. 30, U. S. G. S. page 1^8, plate 26, fig. 4, compressed spec, from Parker's quarry; fig. 4a, more perfect one from ''Red sandrock " east of Highgate Springs. Lower Cambrian {Georgian) formation, in Vermont. L. C. Ptychophyllum kn^ppi. See page 887. Ptychopteria beeeheri, Hall, Pal. N. Y. Vol. V i. 1884, 143,pl. 85, ^g. 21, an entire , â , eft ,V (â¢,,f)'5". valve ⢠J 22, right valve; somewhat resembles P. trigonalis ; right valve like P. alata, but left valve very unlike it; distinguishing characters, its large rhomboidal form, extreme gibbosity and arcuation of left valve. From Upper Chemung at Warren, Pa. Randall's specimens 9613, 9616, 9617, 9618, 9620, 9621, wrongly labelled Allorisma, TIlLg, Ptychopteria elongata, Hall, Pal. N. Y. Vol. V i, 1884, page 141, pi. 85, fig. 10, hinge view; 11,ventral view; 12, large right valve; 13, left valve of 10; surface marked by fine radi- (Continued on page d38.). 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
