Elvis taxon
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An Elvis taxon (plural taxa) is a term used in paleontology. It is similar to a Lazarus taxon and often confused with it. Where Lazarus taxa are those that have seemingly returned from the dead after extinction, Elvis taxa are the descendants of different groups that are known to have survived the extinction and have evolved to closely resemble the extinct group through convergent evolution. The term Elvis taxon is used because although Elvis Presley is truly dead, he has many impersonators.