That’s an oxymoron. As Christine explained, they are not simply trivial variations of modern animals. Moreover, why do we find bear dogs and similar forms only in Cenozoic strata? If they all quickly evolved from some basal form after the Flood in a few hundred years, why would then not have done so before the Flood, and therefore appear as fossils before the Flood? This brings us back to the question of why there are zero pre-Cenozoic fossils of any large modern mammals. No bears, dogs, beardogs, horses, rhinos, hippos, cattle, deer, sloths, pigs, elephants, whales, apes, humans, etc, etc. No matter which of them you think were around before the Flood (at least some had to be, and thus often found as pre-Cenozoic fossils), especially since millions of dinosaurs, pterosaurs, mososaurs, etc. were. You’ve been asked about this several times before, without any reply.