Image: Evolution of placoderms

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Description: Evolution of the now extinct placoderms fishes during the Devonian and the early Carbonifereous 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 3.25 on page 73.
Title: Evolution of placoderms
Credit: Own work
Author: Epipelagic
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC BY-SA 3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0
Attribution Required?: Yes

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