In contrast, both the amphioxus and vertebrates appear to have retained many of the features of that common ancestor. The authors were able to identify about 8,400 groups of genes that were ...

The ancestor of all chordates, a group that includes humans and other vertebrates, probably looked like a sand-dwelling invertebrate called the lancelet or amphioxus. Its newly sequenced genome ...

The lancelet, or amphioxus, is an extant basal chordate that diverged from other chordate lineages about 550 million years ago. Here the authors sequence and assemble the diploid genome of a male ...

The lancelet, however, was not found during the previous bottom investigations carried out along the Israel coast during the years 1946–52 at the 10-, 30-, 50- and 75-fathom lines, ...