This fossil was displayed on August 2022, at the Harvard Museum of Natural History
in Cambridge, Massachusetts, USA. This fish fossil is called
Ephippus rhombus (Blainville). This specimen was found at Monte Bolca, Veneto, Italy. It dates to the Eocene Epoch, Paleogene Period. Catalog number is MCZ5379 or VPF-5379.
https://mczbase.mcz.harvard.edu/guid/MCZ:VP:VPF-5379
https://hmnh.harvard.edu/