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Biology, 25.09.2019 15:10 carvarceuanmoss

Fossil evidence indicates that myllokunmingia, the earliest known vertebrate, had feathery gills, skeletal structures thought to be made of cartilage, and traces of fins. based on this description, myllokunmingia was most likely an early species of

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Fossil evidence indicates that myllokunmingia, the earliest known vertebrate, had feathery gills, sk...

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