Back by popular demand, in part two of two, we once again tackle the sizzling hot topic of placoderm taxonomy. If you thought/hoped we were finished with this, you could not have been more wrong. Today we ask the ultimate question: were placoderms monophyletic or paraphyletic, in other words, did we all evolve from placoderms or not. All jokes aside, this particular debate get weirdly heated, at least within the paleontological community, and this episode is no exception to that. You will definitely want to have a little background knowledge beforehand though, at least listen to part one, but once you have feel free to enjoy this romp through the fascinating, contentious and relevant subject of how early gnathostomes came about.
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