Around 52 million years ago, in the high latitudes of the Arctic, primate-like creatures roamed. The Arctic Circle was warmer, then, and hosted species such as ancient crocodiles, rodents and cow-sized butterflyfish living in a boreal ecosystem. But these “primatomorphans” still had to survive in the darkness for half the year. “No primate relative has ever been found at such extreme latitudes,” says lead author Kristen Miller, a doctoral student at the University of Kansas’ Biodiversity Institute and Natural History Museum. Miller’s research, recently published in PLOS ONE, focused on fossil specimens that were taken from Umingmak Nuna (Ellesmere Island) during the 1970s. Miller studied fossilized fragments of jaws and teeth to identify and name two species that are new to western science: Ignacius mckennai and Ignacius dawsonae. |