SuperDad has a dog. It's not Krypto. Appears to just be an earth dog. His name is Ranger.
I have a golden retriever, and it looks like a golden retriever to me, but, you know, a lot of dog breeds look similar, and it's even possible that the dog's appearance changes a bit from artist to artist, which means it could be jumping breeds depending on which issue of which series you're reading.
Anyone know if Ranger's breed has been established canonically? What breed do you guys think he is?
Bonus question: If SuperDad winds up inheriting Krypto, will Krypto and Ranger get along?
Here's a picture from Action Comics (2011-2015) #52: