This is a fossil of an extinct ancient fish called Knightia, which belongs to the herring family.
Knightia is believed to have lived in freshwater environments, primarily residing in calm waters such as lakes and ponds.
It likely fed on small plankton and aquatic microorganisms.
The famous Green River Formation in Wyoming, USA, is well known for yielding well-preserved Knightia fossils.
Ancient Fish
Scientific Name: Knightia
Era: Eocene Epoch, Cenozoic Era (55 million years ago)
Origin: Wyoming, USA
Price: Available in-store (with custom stand)
Eocene Epoch
The Eocene Epoch (about 56 million to 34 million years ago) was a time when mammals rapidly evolved and diversified. After the extinction of the dinosaurs, ancestors of modern mammals such as horses and whales appeared, and birds and reptiles also evolved. The Earth was extremely warm, with forests even in the polar regions. During this period, a sudden temperature rise, known as the Paleocene-Eocene Thermal Maximum (PETM), significantly impacted the climate.
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