Descriptions of New Species of Fossils, from the Cretaceous Formations of Nebraska

Descriptions of New Species of Fossils, from the Cretaceous Formations of Nebraska : With Observations Upon Baculites Ovatus and B. Compressus, and the Progressive Development of the Septa in Baculites, Ammonites, and Scaphites (Classic Reprint)

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Excerpt from Descriptions of New Species of Fossils, From the Cretaceous Formations of Nebraska: With Observations Upon Baculites Ovatus and B. Compressus, and the Progressive Development of the Septa in Baculites, Ammonites, and Scaphites Our specimen is a portion of the larger valve extending about two and a half inches from the apex, and partially invested with the thick, fibrous shell. From this is drawn the following description. Inferior valve spiral, rapidly increasing from the apex towards the aperture when divested of the outer fibrous shell, the internal septate part is seen to be spirally curved, and rapidly increasing in size; a longitudinal groove or depression extends from the apex along the back of the curve to the larger extremity, crossed by numer ous irregular septa, which pass from the inner side outwards and upwards. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.show more

Product details

  • Paperback | 40 pages
  • 152 x 229 x 2mm | 68g
  • Forgotten Books
  • United States
  • English
  • , black & white illustrations
  • 0243148615
  • 9780243148615