Every other known mosasaur fossil has one tooth per tooth socket. X. calminechari has two teeth per socket. This odd fact, combined with the jaw's discovery in a region known for producing fossil ...

An expanding geographic range for these close Neandertal relatives leaves Denisovans' evolutionary status uncertain.

Fossil hunter Alan Detrich, Overbrook, is pictured with a 17-foot Mosasaur, he discovered several years ago in Gove County, Kansas. Detrich, who has uncovered various dinosaur fossils says it took ...

KAINAN, Wakayama Prefecture--A mosasaur fossil found in the mountains in the prefecture almost two decades ago has been determined to be a new genus and species that lived more than 70 million ...

Excavations at a site known as Sima del Elefante produced several fossil fragments that, when pieced together, form a partial left upper jaw and cheek bone dated to between 1.4 million and 1.1 ...

Initially, scientists thought the two-inch-long jaw fossil belonged to a small crocodile, but they soon discovered they were wrong. “It wasn’t until we got it back to the lab and got under a ...