. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. MX, PLXL Diplograptus pristis. {Oraptolithus pristis.) Eogers, page 820, fig. 612. Illb. Lorraine (Hudson Eiver) formation. (His- ;\ inger's Prionotus pristis, Leth. Suec. 8. A. Miller). (Note. This as Biplograpsus^ is not a Hudson Eiver fossil, but occurs in the Z. C'. Lower Cambrian (Georgian) formation of eastern New York and Vermont; but its presence in the slates of No. Ill in Pennsylvania argues that either it con- tinued to live into Hudson river (Lorr
. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. MX, PLXL Diplograptus pristis. {Oraptolithus pristis.) Eogers, page 820, fig. 612. Illb. Lorraine (Hudson Eiver) formation. (His- ;\ inger's Prionotus pristis, Leth. Suec. 8. A. Miller). (Note. This as Biplograpsus^ is not a Hudson Eiver fossil, but occurs in the Z. C'. Lower Cambrian (Georgian) formation of eastern New York and Vermont; but its presence in the slates of No. Ill in Pennsylvania argues that either it con- tinued to live into Hudson river (Lorraine) times, or that Wal- cott's view of its habitat is erroneous. It must be observed, however, that this, or some other graptolitei^ found in a graph- itic (?) calcareous slate in Sinking Valley, Blair Co.,la., 5,000 feet beneath the bottom of the Utica slate. (T, p. 245).—IIa. Diplograptus? simplex. {Fucoides simplex, Emmons; Fueoides secalinus,. Eaton; Graptolithus secalinus, Hall; Diplo- grapsus simplex, Em- mons, Amer. Geol. Vol. 1,'part 2, page 104, plate 1, fig. 11, added here for comparison.) Walcott, Bulletin D. S. G. 8. No. 30, page 92, plate 11, fig. 4, 4«, natural size.—Z. C. LoicGT Camirian {Georgian) formation, Parker's quarry, Vt.—(See also Em mons' Taconic system, 1844, plate 5, fig. 1.) Diplograptus (Graptolithus) spinulosus. Hall, Pal. N. Y. Vol. 3, p. 517. Wood cut of a fragment of this species of graptolite e7ilarged to twice its natural size, found with the preceding species near Albany in the slates of the Hudson Eiver formation. III h. Note.—This species exhibits no distinct saw teeth (serratures) above its edges; but only undulations as ^"^"'"'' ^ "- bases of the hair like spines which take the place of teeth in other 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
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