Description
This is a detailed Knightia Fish Fossil from Green River Formation. Knightia is an extinct genus of clupeid clupeiform bony fish that lived in the fresh water lakes and rivers of North America and Asia during the Eocene epoch. The Green River Formation is an Eocene geologic formation that records the sedimentation in a group of intermountain lakes in three basins along the present-day Green River in Colorado, Wyoming, and Utah.
