Above is an image of a prawn fossil called Bechleja rostratasp (Feldmann, 1981). This prawn fossil dates to the Eocene Epoch between 54.8 and 33.7 million years ago. It was found Fossil Lake, Wyoming, USA.
The fossil was on display in the Evolving Planet section of The Field Museum of Natural History in Chicago Illinois, USA as of August 2020. Accession number is PF14047. They have an extensive collection of Fossil Lake fossils at the exhibit including holotypes.