1) Genus cordaites 2) Gymnosperm genus 
Cordaites is an important genus of extinct gymnosperms which grew on wet ground similar to the Everglades in Florida. Brackish water mussels and crustacea are found frequently between the roots of these trees. The fossils are found in rock sections from the Upper Carboniferous ({Period span/brief|Upper Carboniferous}) of the Dutch - Belgian - Germ...
[n] - tall Paleozoic trees superficially resembling modern screw pines
genus Cordaites noun tall Paleozoic trees superficially resembling modern screw pines; structurally intermediate in some ways between cycads and conifers