What ecological role did the success of *Gastornis* imply about the Paleocene ecosystem?

Answer

The presence of dense, durable food sources inaccessible to smaller herbivores.

If *Gastornis* specialized in crushing the toughest available plant seeds, its success indicates a world rich in dense, durable food sources that other animals could not effectively exploit, highlighting dominance through mechanical advantage.

What ecological role did the success of *Gastornis* imply about the Paleocene ecosystem?
fossilCenozoicbirdpaleontologyextinct