Re-analysis of a fossil finds it’s from the earliest vertebrate branch - Ars Technica

A group of organisms called yunnanozoans had gills, precursor to jaws.

Enlarge/ Yes, those are gills on this Cambrian animal. 7 with 6 posters participating Because we're a member of the group, it's easy to see vertebrates as the pinnacle of evolution, a group capable… [+3190 chars]

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