dire wolf
Noun
Meaning
An extinct canine (†Canis dirus) from the Pleistocene epoch, heavier and slightly larger than the modern grey wolf.
(fantasy) Synonym of warg (a larger, more vicious, wilder, wolf)
Source: en.wiktionary.orgExamples
I don't know how old my dire wolf is but she's old she's not a puppy.
The fossil record says the dire wolf vanished.