|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|P.S. Herendeen and D. L. Dilcher 1990||Fossil fruits stipitate, oblong to oblanceolate with a rounded apex and tapering base, thin and membranous, 5.3-7.0 cm long (x=6.15) and 2.0 cm wide (maximum width). The placental suture supports a narrow (2 mm, maximum width) nonvascularized wing. The fruit body consists of three longitudinal zones: a central thicker zone and two flanking thinner zones. The primary veins of the valves have an oblique and irregular course from the sutures to the fruit center, where they form a fine reticulum. The primary veins may divide several times before entering the central zone. Venation of the lateral zones is more prominent than that of the central zone. Seed outlines were not observed|