• Knightia Eocaena Fish Fossil Green River Formation 4"x 6" matrix 3.5" fossil

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.
It is the state fossil of Wyoming and the most commonly excavated fossil fish in the world.

Knightia belongs to the same family as herring & sardines, and resembled the former closely enough to be described as species of true herring in the genus Clupea.

As with modern-day clupeids including sardines and herring, Knightia likely fed on algae and diatoms, as well as insects and the occasional smaller fish.

This green river Wyoming specimen measures approx. 3.5" (89mm) in a matrix measuring approx. 4.5" (114 mm) x 6.25" (159mm).   A great display example.


Knightia Eocaena Fish Fossil Green River Formation 4"x 6" matrix 3.5" fossil

  • Product Code: 2018081501
  • Availability: In Stock
  • $17.00




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Tags: Knightia, Eocaena, Fossil, fish, Eocene, epoch, green river, specimen, matrix