What is fossil fish knightia?

Knightia is a genus of extinct freshwater fish that lived in the Eocene epoch, approximately 50-35 million years ago. They are commonly found in fossil deposits in western North America, particularly in the Green River Formation of Wyoming.

Knightia were relatively small fish, typically only a few inches in length. They had a streamlined body shape with a pointed snout and large eyes. Their scales were thin and small, making them light and agile swimmers. They likely fed on small aquatic invertebrates and possibly smaller fish.

One of the reasons Knightia fossils are so abundant is that they were a common prey item of larger fish and other aquatic predators. As a result, Knightia fossils are often found in large numbers in the stomach contents of other fossilized fish.

Knightia is a popular fossil with collectors due to its abundance, attractive appearance, and relatively low cost compared to other fossil fish species. Their fossils are often found in excellent condition, with complete skeletons and detailed preservation of their scale patterns and other features.