Fossil lamprey larvae from South Africa overturn assumptions about vertebrate origins
Fossil lamprey larvae from South Africa overturn assumptions about vertebrate origins: A reconstruction of the Priscomyzon family. Kristen Tietjen Lampreys are an extremely bizarre order of fishes. Together with their cousins, the hagfish, they are the only living group of vertebrates branching from the family tree of animals before they had developed jaws. Vertebrates are …