He looks more accurate to the real deal in his debut appearance
http://www.subsubroutine.com/sub-subroutine/2014/02/20/bayesian-vitalstatistix-what-kind-of-dog-was-dogmatix
He was stated to be an unidentified breed by them
They never intended to have it a specific breed
its closest to white terrier
of course its a mix of non existing breed
they predicted the modern day humanity
I bet you Uderzo didnt even know about these dogs
This man overthought this question waaaaay too much
Do people really fall for this shit?