Shape-shifters found in the belt supergroup—revelations about tappania plana

The rise of eukaryotic organisms (organisms with complex cells, or a single cell with a complex structure) is still a mystery, but Zachary Adam (Harvard University) and colleagues have compelling evidence that Tappania plana may represent one of the earliest eukaryotic fossils. Well-preserved Tappania plana fossils from his Montana field site could be a crown-group eukaryote, providing one of the first links from this period in the fossil record to extant eukaryotes.

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