Contrary to popular belief, therians can have any living or extinct animal as a theriotype. Therianthropy is not just limited to canines. While wolf and fox therians are indeed rather common, they are most certainly not the only theriotype out there.
Never ever discriminate against, look down upon or call someone fake because their theriotype is bizarre, rare or super common. The star-nosed mole therian down the street is just as valid as the dimetrodon therian in the next neighborhood and the wolf therian next door.