Gigantopecten latissimus Bivalve Fossil

Gigantopecten latissimus pelecypod fossil on display at The Museo Civico di Storia Naturale di Milano (Milan Natural History Museum), Italy as of August 2019. The fossil was found in France. It dates to the lower Miocene Epoch (20 million years ago).

Albertella helena Trilobite Fossil

Here is a picture of an Albertella helena trilobite fossil. The fossil was found in the United States and dates to the Cambrian Period.
It was on display at Museo Civico di Storia Naturale di Milano (Milan Natural History Museum)  in Italy on August 2019.

Laevaptychus Pelecypod Fossil

Laevaptychus sp. pelecypod fossil on display at The Museo Civico di Storia Naturale di Milano (Milan Natural History Museum), Italy as of August 2019. The fossil was found in Patagonia, Argentina. It dates to the upper Jurassic Period (150 million years ago).

UPDATE: I made a mistake at identifying this fossil earlier. The name is updated.