Fossil Park Field Day

Children and parents work together to see if a fossil can be found during the Fossil Park Field Day in Sylvania, Ohio on Saturday, July 7, 2012.

Enlarge | Buy This Photo Cameron Smith, 12, of Maumee Ohio, breaks apart a rock to see if a fossil can be found during the ... THE BLADE/ZACK CONKLE

Garrett Smith, 5, of Maume, Ohio, scans the mounds of rocks for an signs of a fossil during the Fossil Park Field Day in Sylvania, Ohio.

Enlarge | Buy This Photo Garrett Smith, 5, of Maume, Ohio, scans the mounds of rocks for an signs of a fossil during the Fossil ... THE BLADE/ZACK CONKLE

Schuler Skelton, 6, of Plymouth, Mich., studies a rock to see if it contains any fossils during the Fossil Park Field Day in Sylvania, Ohio.

Enlarge | Buy This Photo Schuler Skelton, 6, of Plymouth, Mich., studies a rock to see if it contains any fossils during the Fossil Park ... THE BLADE/ZACK CONKLE

Enlarge | Buy This Photo Matthew Crawford, a supervisor at Fossil Park, shows kids a crinoid during the Fossil Park Field Day in Sylvania, Ohio. THE BLADE/ZACK CONKLE

Enlarge | Buy This Photo Both children and their parents alike hunt for fossils during the Fossil Park Field Day in Sylvania, Ohio. THE BLADE/ZACK CONKLE