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The top documents tagged [ancestral chordates]
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BYA 4.6 3.8 3.6 2.8 1.9 1.0 0.6 0.002 Origin of the earth Stabilization of the earth Simple cells abundant Atmospheric oxygen plentiful Eukaryotic cells
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LS6 BL4106 Chordata I Fish Lancelet & Seasquirts 2013
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