Fossil species that are used to distinguish one layer from another are called index fossils. Index fossils occur for a limited interval of time. Usually index fossils are fossil organisms that are ...

A chicken-sized dino, the oldest known in North America, has thrown a wrench in the widely accepted timeline of early ...

In 1993 Schopf published a paper about some microfossils he had found in Early Archaean rocks, which he claimed were the ...

"Remarkably, the fossil is so well-preserved that it is possible to observe individual cellular layers within its skin." The researchers identified cell-like microstructures which probably held ...

NAGASAKI--Researchers have determined that a fossil found in the layers of a local beach is the shoulder blade of a 9-meter-long ornithopod dinosaur, one of the largest in Japan and possibly a new ...

Moreover, the conditions for fossil fuel formation favor environments rich in smaller organisms that rapidly accumulate and decompose in sedimentary layers. Dinosaur carcasses, though massive ...

Researchers from Imperial College London have made an exciting discovery that reveals ancient mollusks were more complex and ...