This fossil was displayed on August 2022, at the Harvard Museum of Natural History
in Cambridge, Massachusetts, USA. This fish fossil is called
Priscacara serrata (Cope, 1887). This specimen was found in the Green River Formation at Kemmerer Wyoming USA. It
dates to the Eocene Epoch (48 million years ago), Paleogene Period
https://mczbase.mcz.harvard.edu/guid/MCZ:VP:VPF-5372