Mihaildi had purchased a roughly 3,200-pound slab of sandstone intending to fix the wall, but once he began to slice through the stone’s outer layers, he noticed something embedded within.

has been photographing and mapping hundreds of fossil footprints at nearly 3,000 meters altitude. Embedded within slabs of sandstone, the footprints of at least five different animal species have ...

Late Devonian brachiopod fossils were preserved as molds in a fine-grained sandstone (Big Creek, Hornell, New York, N 42.364361, W 77.645760). Individual fossil samples like this are the basis for ...

based on three different ways of dating the layer of sediment in which the fossils embedded, they estimated they were between 1.4 million and 1.1 million years old. The team also recovered animal ...