This is not a very precise representation of the Pleistocene or "ice ages". You gotta choose from one of two descriptions:
1. The last period of ice age cycles (Pleistocene) started for roughly 2.6 Mya, and did not end 11,700 years ago, but is still ongoing. What did end in the latter was the last ice age cycle of alternating interglacials and ice ages.
2. The last period defined as an ice age started after the previous interglacial which ended c. 110,000 years ago and lasted until c. 12,000 (or 11,700) years ago, when the present interglacial began, the one we call the Holocene. However, there is no indication that this interglacial will not end in a new glacial period (unless we mess up so much that the whole system schewes).
Also, there were a lot of great beasts during the glacial period across the globe, such as the mammoths, cave bears, whooly rhinoceroces, giant lemurs, giant sloths, saber-toothed tigers, Elasmotherium, giant elks, Aepyornis etc. The dinosaurs would be WAAAAAY too weird to put in, being separated by at best (with Homo erectus) 64-65 million years. The great beasts of the ice age and a bit further fits perfectly in the story of humans.