Out of the south cometh the whirlwind: and cold out of the north.( Job 37:9-10 ) KJV
By the breath of God frost is given: and the breadth of the waters is straitened.
Generalizations have been used to obscure the truth which is that ice formed because the waters of Noah’s flood evaporated. Evaporation causes cooling, and cooling caused the ice. Ice has been retreating ever since Noah’s flood. The ice has been mitigating the effect of the expansion of hell. Now there is very little ice left which is why we are experiencing “climate change.”
Each of the geological Eras, Periods and Epochs are technically accurate descriptions of the evidence. However, the misdirection is that each one happened at a different time in history. They are the same event.
There’s something else to bear in mind: the mammoth and other creatures were preserved in ice. The ice formed because of the cooling effect of the flood waters evaporating. Therefore there was no ice before the flood. The ice was a result of the flood. Therefore the mammoth didn’t live in an icy environment, and paleoecological reconstructions of it are completely wrong. They get cause and effect in the wrong order.