The Vertebrate Fauna of Cheshire and Liverpool Bay Volume 1

The Vertebrate Fauna of Cheshire and Liverpool Bay Volume 1

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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. 1907 edition. Excerpt: ... and plants direct from Central Asia. Towards the end of the same period the Alpine peninsula, owing to the partial retreat of the sea on the west, became joined to France. The primitive Alpine fauna, which had developed from an eastern stock, was, therefore, now able to-throng into the northern portion of our Continent. The E.A. K sea on the northern shores of the Alpine area gradually receded, reducing the ancient ocean, but still leaving a great sea, which rolled between Austria and Southern Siberia, across what are now the Black Sea and Caspian. Meanwhile what had at first been a flat island slowly rose into a mighty mountain chain, such as we see in the Alps at present. This is a brief account of the geological history of the Alpine area as revealed by a study of its rocks. The geological history of the Alpine fauna and flora, however, has likewise received some attention. Riitimeyer was of the opinion that the continuity of generations of mammals throughout Tertiary times until the present period had never been interrupted in Switzerland. A few genera became extinct, yet the survivors maintained themselves within the area of Switzerland to the present day. He does not clearly indicate his views as to the effect of the Glacial period on the fauna of the Alps. Other more recent writers are more precise in this respect. Professor Zschokke, who has specially studied the lake fauna of the Alps, comes to the conclusion that it is composed ofa mixture of three distinct elements. He recognises a fragment of an ancient fauna which survived the Glacial period, though he does not suggest that this survival actually took place in the Alps. Another element reached the mountains from the sea by pushing its way up the river courses in post-Glacial...show more

Product details

  • Paperback | 74 pages
  • 189 x 246 x 4mm | 150g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236854306
  • 9781236854308