Who are the ancestors of the fox?

The ancestors of the fox are members of the Canidae family, which includes all of the extant canids (wolves, coyotes, jackals, dingoes, and foxes). The Canidae family is believed to have evolved from the Miacidae family, which was a group of primitive carnivorous mammals that lived during the late Paleocene and early Eocene epochs (about 55-45 million years ago). The Miacidae family is believed to have evolved from the Viverravidae family, which was a group of small carnivorous mammals that lived during the late Paleocene epoch (about 55-58 million years ago). The Viverravidae family is believed to have evolved from the Hesperocyoninae family, which was a group of small carnivorous mammals that lived during the late Eocene epoch (about 37-33 million years ago). The Hesperocyoninae family is believed to have evolved from the Caniformia suborder of the Carnivora order, which was a group of large and small carnivorous mammals that lived during the early Eocene epoch (about 55-37 million years ago). The Caniformia suborder is believed to have evolved from the Miacoidea superfamily, which was a group of primitive carnivorous mammals that lived during the late Paleocene and early Eocene epochs (about 55-45 million years ago).

The Miacoidea superfamily is believed to have evolved from the Creodonta order, which was a group of primitive carnivorous mammals that lived during the early Eocene epoch (about 55-37 million years ago). The Creodonta order is believed to have evolved from the Condylarthra suborder of the Ungulata order, which was a group of primitive mammals that lived during the late Paleocene and early Eocene epochs (about 55-45 million years ago). The Condylarthra suborder is believed to have evolved from the Pantodonta order, which was a group of primitive mammals that lived during the late Paleocene and early Eocene epochs (about 55-45 million years ago). The Pantodonta order is believed to have evolved from the Mammaliaformes clade, which was a group of primitive mammals that lived during the late Triassic and early Jurassic periods (about 208-145 million years ago).

Therefore, the ancestors of the fox can be traced back to the Mammaliaformes clade, which was a group of primitive mammals that lived during the late Triassic and early Jurassic periods (about 208-145 million years ago).