It’s more like a TRex had just cbomped down on this poor critter and a leg fell out of it’s mouth.
One or two hours before the mega- asteroid hit the Gulf of Mexico. Unfortunately the T-Rex stumbled and was washed down the river. Thus, no T-Rex fossil remains to be found.
It’s well known that letting Gloria Jones drive killed T-Rex.
To save themselves the dinosaurs decided to make a T-Rex army. But the best they could manage was small arms.