Tags: Crustacean.

Chamaesipho grebneffi is the first extinct member of the Notochthamalinae to be described and the oldest chthamaloid barnacle known. This species is a fully derived Chamaesipho and indicates a considerable antiquity for Chthamaloidea.Three extinct species of Chthamalus from the middle Miocene of the faluns of Touraine France were described in 2008 by Carriol. the New Zealand species is Oligocene and considerably older.

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