Vitaceae (Grape family): Ampelocissus auriforma Manchester from the Middle Eocene Clarno Formation, Oregon. (top: UF 225-6572, holotype, cast and mold of seed Bottom: UF 225-9524, seed in cross section showing large ventral infolds. Clarno Nut Beds, Oregon (Middle Eocene). Figure 8, Chen and Manchester 2007.