Newly discovered dinosaur species had one less finger than its relatives

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Here’s a look at what the Oksoko avarsan dinosaurs might have looked like way back when.


Michael W. Skrepnick

Newly discovered fossils of a toothless, parrot-like dinosaur species that lived more than 68 million years ago show a creature with only two fingers on each forearm. That’s one less digit than its close dinosaur relatives had. 

The fossils imply that the dinosaurs may have evolved forelimb adaptations that enabled them to spread during the Late Cretaceous Period, researchers say in a new study published Wednesday in The Royal Society Open Science journal. Paleontologists from the University of Edinburgh found a number of complete skeletons of the new species during a dig in Mongolia’s Gobi Desert. 

The feathered, omnivorous Oksoko avarsan grew to around 6.5 feet (2 meters) long. In addition to two functional digits on

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