Arrows and rocks rained from the sky like the fury of the Gods!
To everyone's surprise, the rocks were more effective than the arrows. This was a surprise, but the science behind it made sense.
Arrows were sharp and pointy, sure, but the fist-sized rocks were tossed from a height of over three-hundred meters, or over a thousand feet, so gravity helped them gain a deadly velocity! A rock to the head killed men on the spot, while a rock on the shoulder simply broke shoulder bones.
It helped that tens of rocks were tossed at the enemy at once. The archers could hear the enemies yelping, and screaming in pain. The rocks really overwhelmed them, or caught them by surprise, at least.
This part of the plan was the Jurassic equivalent of an air strike. It was effective, but unfortunately, they could only use this attack once.
