Amphioxus Head 15x (IMAGE)

Marine Biological Laboratory

Amphioxus Head 15x

Caption

This is the head of the marine invertebrate amphioxus (Branchiostoma floridae), magnified 15 times. Amphioxus are the most ancient of the chordates (animals whose features include a nerve cord), according to molecular analysis. They are important to the study of the origin of vertebrates.

Credit

Maria del Pilar Gomez/MBL

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