Camden, New Jersey is in a county in New Jersey.
Rotulidae is a family of small sand dollars native to the Atlantic coast of Africa , with 3 genera , with Rotula and Heliophora being extant , the other , Rotuloidea , being extinct since the Pliocene , but all three being found in the fossil record along the Atlantic African coast since the Miocene .. Miocene. Miocene. Rotula. Rotula. Heliophora. Heliophora. Rotuloidea. Rotuloidea. Africa. Africa. Pliocene. Pliocene