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English: Late Devonian vertebrate speciation; descendants of pelagic lobe-finned fish including early tetrapods as well as other lobe-finned fish.

incorporating images by others:

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Spreadsheet chart and gradient done with Appleworks, images composited and text added in Photoshop Elements, on a 2001 iBook (G3 466). Contact me at w:user talk:dave souza to request any changes.
Date 06:57, 10 April 2006
Source Own work by uploader using commons sources
Author Graphic by dave souza, incorporating images by others, as description
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