The common ancestor of dogs and gray wolves, while perhaps having some differences with modern wolves, was still a gray wolf, and this is supported by the paper you linked below. While it’s true that modern gray wolves have less diversity than ancestral ones, what Desrtopa said is also correct.
The common ancestor of dogs and gray wolves, while perhaps having some differences with modern wolves, was still a gray wolf, and this is supported by the paper you linked below. While it’s true that modern gray wolves have less diversity than ancestral ones, what Desrtopa said is also correct.