Eocene Green River Aristolochia P-PCM-16-022 Fossil seed or fruit The inner part of the

The inner part of the perianth tube is covered with hairs

(crane fly)

Upper Cretaceous (Campanian)

producing spores of differing sizes

Corson County

Eocene Green River Aristolochia P-PCM-16-022 Fossil seed or fruit The inner part of theAristolochia mortua Green River Formation Parachute Creek Member Middle Eocene Uintah County, Utah This is a splendid specimen of the rare fossil leaf of Aristolochia. The leaf is 5 cm tall and displays remarkable venation. The slab also has a very good leaf of Oreopanax elongatum. Aristolochia is a genus of evergreen and deciduous woody vines and herbaceous perennials. The smooth stem is erect or somewhat twining. The simple leaves are alternate and