Enumeration of Fossils Collected in the Niagara Limestone at Chicago, Illinois

Alexander Winchell, Oliver Marcy

ISBN 10: 0243129815 / ISBN 13: 9780243129812

Edité par Forgotten Books, 2018

A propos de cet article

Print on Demand. This book delves into the discovery of 82 fossil species from the M'agara Limestone in Chicago, Illinois, broadening our understanding of the areaâ s geological history. The author examines the limestoneâ s composition, its similarities to nearby formations, and the diversity of life teeming in the paleozoic seas. Through detailed descriptions and illustrations of fossils like corals, mollusks, and crinoids, the author demonstrates the limestoneâ s significance as a window into the distant past. This book is sure to captivate readers interested in the history of life on Earth. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book.

N° de réf. du vendeur 9780243129812_0

Détails bibliographiques

• Titre: Enumeration of Fossils Collected in the Niagara Limestone at Chicago, Illinois
• Éditeur: Forgotten Books
• Date de parution: 2018
• Langue: anglais
• ISBN à 10 chiffres: 0243129815
• ISBN à 13 chiffres: 9780243129812
• Reliure: Paperback
• État de l'article: New
• Type de livre: print-on-demand item
• Catalogues du vendeur:
  • Paleontology

A propos de ce titre

Synopsis

Excerpt from Enumeration of Fossils Collected in the Niagara Limestone at Chicago, Illinois: With Descriptions of Several New Species

Polypary consisting of a mass of crowded cylindrical tubes arranged in ramose and folia ceous forms, both forms being sometimes united in one specimen. The earlier growth, in one Of our specimens, is explanate. The cells are elongated, obliquely horizontal, crowded, overlapping, with their mouths Opening obliquely through the epitheca. The frond devel ops into an irregularly undulate form, sometimes dividing, and some of the lobes bending round laterally, after the manner of one or two turns of an Archimedes. From the border of the frond arise terete, bifurcating branches, with the mouths Opening on all sides. All the cell-mouths are somewhat crescentiform, the outer lip often slightly indented, and some times sufficiently so to give the mouth a triangular outline.

In exfoliated, weathered specimens, the cells are seen to be cylindrical and separately walled, but closely in contact. The width of three of these cells occupies the space of one tenth of an inch; their length is about a third of an inch. No evidences of septa or la mellac can be detected.

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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.