According to hindhuism there are 4 yugas: satya yuga - existed for 1,728,000 humanyears,
treta yuga - existed for 1,296,000 humanyears(ramayana took place),
dwapar yuga- existed for 864,000 human years (mahabharatha took place)
and the last is kali yuga (presently we are in the 1st stage of kali yuga).
The Ice age came into effect at the end of dwapara yuga, it was the same time when the lord krishna's dwaraka was devoured by flood and kali yuga came into existence once lord krishna left the earth.
As per this reference, the dinosaurs lived during the period of dwapara yuga. The people who lived during that period were gaints and there were rakshas & people between whom lays always a fight.[ In one of the south indian temple carvings, i remember seeing a picture of dinosaur on one side and there are sages performing rituals beside it. this image was published in a tamil magazine named 'shakthi vikatan'].
