Volume 1

A picture book of evolution / by Dennis Hird.

  • Dennis Hird
Date:
1906-1907
Catalogue details

Licence: Public Domain Mark

Credit: A picture book of evolution / by Dennis Hird. Source: Wellcome Collection.

    97/220 page 85
    other forms (some almost like existing-fishes) could be shown. Fig. 66.—A group of Lower Silurian Trilobites. Sharks abounded in this period, and Fig. 71 shows one of these early forms.
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