Late Devonian vertebrate speciation; descendants of pelagic lobe-finned fish including early tetrapods as well as other lobe-finned fish.
Graphic by by dave souza, incorporating images by others:
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.
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