These fossils appear to be  Crassatella vadosus  pelecypods (named by Morton 1834). They existed during the Cretaceous Period (about 70 m...

Here is a YouTube video from the SciShow channel. It claims that the Orthoceras cephalopod is the world's favorite fossil. They are s...

These fossils appear to be Volutomorpha mutabilis gastropods (named by Wade 1926). They existed during the Cretaceous Period (about 70 m...