During which era did the aurochs face an apex predator challenge from cave lions, cave bears, and wolves?

Answer

The Pleistocene epoch

In the Ice Age European steppes, the aurochs faced a 'mega-predator guild' consisting of cave lions, cave bears, and packs of early wolves.

During which era did the aurochs face an apex predator challenge from cave lions, cave bears, and wolves?
Predatoranimalpreyaurochs