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An Inordinate Fondness for Eukaryotic Diversity

Figure 1

The tuatara (Sphenodon punctatus, left) is one of only two surviving species in the clade Sphenodontia.

The sister clade to the tuatara is Squamata, which includes the ∼7,000 living species of snakes and lizards, including the ornate day gecko (Phelsuma ornata, right). (Left) from Wikimedia commons, taken by user KeresH,; (Right) by the author.

Figure 1