This picture is of a  Pentacrinites briareus  (Ameghino, 1907) ground sloth fossil. It was found in Argentina. The fossil dates to the Pli...

  Today's fossil is from the old hunting grounds of the famous collector Mary Anning. This picture is of a Pentacrinites briareus  (Mill...

  The fossil for today's posting is Tennessee's state fossil (I think, the genus name is slightly different). This bivalve mollusk i...