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Evolution

Careful with that amphioxus

The textbook tale of vertebrate origins is brought into question by phylogenetic analyses of new genomic data. But the amphioxus, long viewed as a precursor to fish, remains a central character in events.

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Figure 1: Deuterostome relationships.

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Gee, H. Careful with that amphioxus. Nature 439, 923–924 (2006). https://doi.org/10.1038/439923a

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