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Previous Tetrapod Ancestors Fell Flat, Too

  Fame and Fortune (cont.): What constitutes a sister taxon to tetrapods? By Margaret Helder, PhD (continued from yesterday) Ever since Prof. Edward Drinker Cope identified a lobe finned fish called Eusthenopteron from Miguasha in Quebec, as a promising ancestor of four footed animals, the question arose as to what features in a fish would […]

Latest Tetrapod Ancestor Can’t Stand Up

In a two-part entry, Dr Margaret Helder examines the latest candidate fossil for ancestor to all land vertebrates.
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