Eospirifer radiatus Brachiopods shown are: Atrypa reticularis? , Eospirifer eudora , Eospirifer radiatus , Homoeospira evax , Laptaena...

Leaf mine fossil made by moth caterpillar ( Gracillariid sp. ) from the Cretaceous Period.  Fossil on display (2010) at Smithsonian Natio...

A sycamore leaf ( Macginitiea wyomingensus ) displayed at the Smithsonian National Museum of Natural History.  The splotches on fossi...