Middle Miocene

Shanwang Formation

Shangdong Province, China

25mm side view flower, including stem, on 80mm slab.

Flower, Angiosperm.

Porana is a genus of climbing or twining plants (creepers) living today in India, Australia, Madagascar, and the Malay Archipelago.  This might be one of the earliest occurrences of the genus after at least one Eocene species was assigned to the genus, Chaneya.