Miocene fossils collected at Brownie's Beach, part of the Calvert Cliffs formation, including shark teeth and whale, seal and dolphin bones and teeth.

State of Maryland website for Miocene marine deposits in Chesapeake Bay region.

Photos and descriptions of fossils collected from Calvert Cliffs area of the Chesapeake Bay, including megalodon shark teeth and marine mammal fossils.

Information from Calvert County

Information from the State of Maryland