The oldest fossils are remains of marine organisms that populated the ... bones, shells, or wood -- were preserved. Fossils can be formed in several ways. Buried bone and shell contain tiny ...

MIZUNAMI, Gifu Prefecture--A fossil believed to be the bones of the extinct marine mammal Paleoparadoxia was found in the Tokigawa river here on June 10. The Mizunami Fossil Museum, the city’s ...

The oldest fossilized forest on Earth was discovered ... However, rather than being made of solid wood, their trunks were ...