The camels in the article were from 3.5 million years ago, the Younger Dryas occurred around 12,000 years ago. There are apparently flash frozen mammoths caused by that event.
SC time to post the Firestone, et al. book.
The Cycle of Cosmic Catastrophes:
Flood, Fire, and Famine
in the History of Civilization
by Richard Firestone,
Allen West, and
Simon Warwick-Smith