A Lazarus Taxon is the name of a box set by Chicago post-rock group Tortoise, released in 2006 on the Thrill Jockey label. The set contains three CDs, one DVD and an accompanying 20-page booklet. The CDs contain 33 tracks of rare material from tour, compilation and non-American releases, the band's out of print 1995 album Rhythms, Resolutions & Clusters, which compiled remixes by friends of the band including Steve Albini, Rick Brown, Jim O'Rourke and Brad Wood, and other previously unreleased material including a restored remix by the Minutemen's Mike Watt that was delivered too late for inclusion on Rhythms... and subsequently fell victim to a malfunctioning DAT machine. Tortoise bassist Bundy K Brown himself restored the tape, twelve years after it was recorded. The DVD contains most of the band's music videos as well as over two hours of "extensive and rare" live performance footage. The set was compiled by the band themselves. The set's title is derived from the palaeontological term "lazarus taxon", meaning a taxon (or grouping of organisms) that disappears from the fossil record only to reappear again at a later point, which in turn refers back to the resurrection of Lazarus by Jesus in the New Testament. The photography used in the artwork was personally selected by the band from the work of retired Swiss police officer Arnold Odermatt, who became noted for his pictures of accident scenes and police training, often returning to accident scenes he had photographed t