Sure!
Increasing Dicynodon to Medium just by giving it the size adjustments nets us:
Str 14, Dex 8, Con 17, Int 2, Wis 12, Cha 4
This is about comparable to a boar, which I like, but like the boar I think that the Dex should get boosted back up to 10. It was ridiculously common, leading me to think that it should have a similar racial Survival bonus to Diictodon. The Wikipedia entry suggests that paleontologists have hypothesized that it nested in burrows--I'm thinking this should be just flavor text as opposed to a burrow speed, but I'm flexible. Likewise, we could give it either a slow Swim speed or a racial bonus to Swim checks, since its high nostrils and eyes, and its hippo-like body plan, suggest it may have been an aquatic grazer.
Edit: Ninja'ed again!