Illustrations of Devonian Fossils; Gasteropoda, Pteropoda, Cephalopoda, Crustacea & Corals of the Upper Heldenberg, Hamilton & Chemung Groups ...

Illustrations of Devonian Fossils; Gasteropoda, Pteropoda, Cephalopoda, Crustacea & Corals of the Upper Heldenberg, Hamilton & Chemung Groups ...

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1876 edition. Excerpt: ... medium size, retaining the shell on the outer chambez and showing septa on the inner volution. " 2. Profile of another individual showing the flattening of the back, the sinus of the striae, and the dorsal lobe of the septa. Goniatite limestone, near Marcellus, N. Y.) Gonmr1ms EXPANSUS. (For references, see ezplanatzbn of Plate 64 Fig. 1. Lateral view of a large individual retaining the outer chamber and inner septabe portions, the former preserving the shell and showing the surface markings. From Goniatite limestone, near Manlius, N. Y. Goms'rrrns EXPANSUS. (For refere-nces. see explanation of Plate 64 B.) Fig. 1. Lateral view of the largest individual known. The specimen has been denuded of shell and the filling of the outer chamber much broken. The lines of septa are well shown on a part of the volutions, but on the smaller one the shell is partially preserved. From the Goniatite limestone, near Manlius, N. Y. Gon1arrrns SIMULATOR.. Goniatibzs simulator Hall. Descriptions of New Species of Goniatidae, p. 2. Mav. 1874. " " Twenty-seventh Ann. Rep. N. Y. State Mus. Nat. Hist., p. 133. 1875. Fig. 1. Lateral view of a specimen showing a considerable part of the outer chamber, with the remaining portion distinctly marked by lines of septa. " 2. Profile of the same, showing the septa crossing the dorsum. The specimen is somewhat imperfect; the outline of the aperture on the right side of the figure has been restored to correspond with the preserved portion on the left side. From the Chemung group, near Ithaca, N. Y. GONIATITES EXPANSUS. (For references. sec ea: planatt'on of Plate 67.) Fig. 3. Lateral view of a young specimen which is septate throughout (the outer chamber wanting), and the volutions very round....show more

Product details

  • Paperback | 46 pages
  • 189 x 246 x 3mm | 100g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236963342
  • 9781236963345