Double Knightia eocaena | 100% Natural | Green River Formation | Wyoming

Knightia eocaena Eocene (51.98 Million Years Ago) Private Quarry, Green River Formation, Wyoming, USA Preparation by Carl Ulrich Obtained from the collection of Dr. William Rieger   Plate approx. size: 12.75" x 8.5" Large Knightia approx. size: 8" if straight Small Knightia approx. size: 5" The smaller Knightia on this plate represents the average size of Knightia eocaena. The larger Knightia is an impressive specimen which, if not for its disarticulated tail, could have been among some of the largest Knightia eocaena ever discovered.   Knightia is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, "an indefatigable student of the paleontology of the Rocky Mountains." It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world. Knightia