Fossil seed – Carpolithus sp.
Early Eocene
Green River Fm.- Parachute Creek Mbr.
Douglas Pass, CO USA.

6mm fruit on 35mm slab.

Carpolithus is a form genus of a seed or fruit not known to be associated with a particular plant. In other words, scientists don’t know yet what plant it came from.

The name is derived from Greek simply meaning, “stone fruit.”