The shell fossil in the first picture shows signs of predation probably from some sort of gastropod. These fossils appear to be  Crassate...

The fossil appears to be  Cyprimeria alta  pelecypod fossil. It existed during the Cretaceous Period (about 70 million years ago). This f...

The fossil appears to be  Granocardium stantoni?  pelecypod fossil. It existed during the Cretaceous Period (about 70 million years ago). ...