The thing was an 11.5 foot monster that looks like the lovechild of a T.Rex and a lioness. Nothing on this planet, before or since, has ever been quite so badass. It was also Russian, so were it alive today it would drink their nasty potato-booze and drive around with a dashboard cam and an AK. On a related note, this animal was a Therapsid, more closely related to mammals like us than, say, lizards or crocodiles or dinosaurs. The more you know.