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A remarkable discovery of this year which did not get much media attention: Guiyu oneiros is the oldest known articulated osteichthyian (bony fish). Remains are from the Silurian of China. Although this is definitely a primitive sarcopterygian, many features place it very close to the ancestry of all osteichthyes which include sarcopterygians (lobe-finned fish such as the coelacanth and the lungfish) and actinopterygians (ray-finned fish, a group that contains most of the modern bony fish: herring, salmon, and so on).
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Scratch that. I stopped by the PZ Myers peer-review blog and it showed a photo of the fossil in question. The specimen's in fairly decent shape except for the missing tail and a missing fin. But overall, it's enough to put together a good illustration like this one.