The fossils at John Day span 40 million years and offer one of the richest evolutionary records of the Cenozoic Era, including prehistoric alligators, bears, dogs, pigs, horses, cougars and even ...

PORTLAND, Ore. (KOIN) – The first-ever described fossilized grasshopper nest has been identified after scientists discovered the 29-million-year-old fossil in the John Day Fossil Beds in 2016 ...