feb 24, 87000000 BC - The giant fish Xiphactinus

Description:

https://www.ccsf.edu/Departments/History_of_Time_and_Life/content/LargeFish.htm
This large fish (extinct Xiphactinus audux) existed in the Age of the Dinosaurs, during the Cretaceous when jawed vertebrate fish species became especially abundant and diverse. (This particular fossil is likely between 87 and 82 million years old.)

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