Knightia eocaena Fish Fossil
2019 © Maxim Tabachnik
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Knightia eocaena Fish Fossil

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Knightia eocaena , an extinct schooling fish, thrived during the Eocene epoch (56–34 million years ago). Its fossils, mainly found in the Green River Formation, Wyoming, USA, offer insights into ancient freshwater ecosystems. As a primary food source for larger predators, Knightia played a crucial role in its environment, illustrating the complex food webs of prehistoric aquatic life.