https://media.nature.com/original/nature-assets/ncomms/2017/170718/ncomms16082/extref/ncomms16082-s1.pdf https://media.nature.com/original/nature-assets/ncomms/

https://media.nature.com/original/nature-assets/ncomms/2017/170718/ncomms16082/extref/ncomms16082-s1.pdf https://media.nature.com/original/nature-assets/ncomms/2017/... this contains a whole load of various genetic distance measures between the european samples, ancient and modern dogs, ancient and modern wolves, but no pictures. maybe in the sources for the genome you can find the specimen, there are some Portuguese breed that seem the closest by a wide margin.