Paleontological discoveries reveal dinosaur evolution and avian survival secrets

New paleontological findings are providing deeper insights into dinosaur evolution and the survival of avian ancestors during the Cretaceous-Paleogene extinction event.

In Spain, the discovery of Foskeia pelendonum, a chicken-sized herbivorous dinosaur from the Ornithischia group, is helping scientists bridge a 70-million-year evolutionary gap. Originally discovered in the Castrillo de la Reina geological formation in 1998, the species helps clarify long-standing debates regarding whether small fossils represent new species or merely juveniles of larger dinosaurs.

Separately, research published in Current Biology suggests that insulating plumage played a critical role in the survival of certain prehistoric birds following the Chicxulub asteroid impact 66 million years ago. By analyzing fossilized feathers found within a coprolite discovered in Montana, researchers determined that these adaptations helped avian ancestors endure the extreme cold and darkness caused by the impact winter.