The ancestral Arctic fox Vulpes qiuzhudingi is an extinct species of fox found in the Himalayas. It was primarily carnivorous. The fossils, dating from between 5.08 and 3.60 million years ago, were found in the and Kunlun Mountains of Tibet. It was named after , a paleontologist from the Chinese Academy of Sciences. The species is believed to be the ancestor of Vulpes lagopus, the modern Arctic fox, which would support the "Out of Tibet" theory: namely, that a number of current arctic species trace their ancestry to species originally from the Tibetan Plateau.