The Ice Age started in the Pleistocene era.
The very first ice age is believed to have started around 2.4 billion years ago, likely in the Late Proterozoic era. This was driven by a combination of factors, including changes in the Earth's atmosphere, landmass distribution, and variations in solar radiation.
As far as I know there was no Ice age during the Jurassic era.
ice age
The ice age occurred during the Pleistocene epoch, which lasted from about 2.6 million to 11,700 years ago.
Cenozoic.
Ice age
Frozen era?
Frozen era?
in cold paces
The wooly mammoth lived in the Cenozoic era, the Tertiary period, Pleistocene epoch, and the Calabrian age.
The Quatermary Ice Age started about 2 million years ago. The earth is still in this Ice Age because we still have a large ice sheet over Antarctica.
Ice Age