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Noun1.Cordaitaceae - chiefly Paleozoic plants; Cordaites is the chief and typical genus
gymnosperm family - a family of gymnosperms
Cordaitales, order Cordaitales - extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian period; probably extinct since the Mesozoic era
Cordaites, genus Cordaites - tall Paleozoic trees superficially resembling modern screw pines; structurally intermediate in some ways between cycads and conifers
References in periodicals archive ?
Certain giant horsetails, of the genus Calamites, which reached heights of up to 33 ft (10 m) and which had huge stems, were abundant in that tall forest, together with treelike Cordaitaceae (Cordaites), which had long leaves and a similar shape to that of the araucarias, and ferns (Sphenophyl-lum, etc.