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Noun: order Cordaitales
  1. Extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian period; probably extinct since the Mesozoic era
    - Cordaitales

Type of: plant order

Part of: class Coniferopsida, Coniferophyta, Coniferophytina, Coniferopsida, subdivision Coniferophytina