pedunculata definition

  • noun-plural:
    • A division of Cirripedia, like the stalked or goose barnacles.
  • others:
    • In Lamarck's classification (1801-12), 1 of 2 instructions of Cirripedia, distinguished from Sessilia; the pedunculate as distinguished from sessile cirripeds. They have six pairs of biramous legs, and such as the Lepadid√¶ and Pollicipedid√¶.
    • An order of brachiopods, comprising all having shells affixed by a peduncle (Lingula, Terebratula, etc.): contrasted using the Sessilia (Orbicula, Crania, etc.).

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