Cordaitales

Từ điển WordNet v3.1 - WordNet Dictionary

noun

extinct plants having tall arborescent trunks comparable to or more advanced than cycads;
known from the Pennsylvanian period;
probably extinct since the Mesozoic era
• Syn:
order Cordaitales
• Hypernyms:
plant order
• Member Holonyms:
Coniferopsida, class Coniferopsida, Coniferophytina, subdivision Coniferophytina, Coniferophyta
• Member Meronyms:
Cordaitaceae, family Cordaitaceae