Fish_evolution.png


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English: Evolution of fishes from the Cambrian to the present as a spindle diagram. The width of the spindles are proportional to the number of families as a rough estimate of diversity. The diagram is based on Benton, M. J. (2005) Vertebrate Palaeontology , Blackwell, 3rd edition, Fig 2.10 on page 35 and Fig 3.25 on page 73, as well as this source , and this Wikimedia Commons file .
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30 January 2013