What did the gastornis evolve into?

Answer 1

Scientist are not officially sure what species, Gastornis evolved into, but probably evolved into a group of large, predatory birds called Phorusrhacids or 'Terror Birds'. The only information that contradicts this is the fact Terror Birds originated in South America, while Gastornis was native to North America. So most likely, Terror birds evolved from a close cousin of Gastornis, that existed in South America, during the time Gastornis roamed. This means that the actual species of Gastornis may have gone extinct without evolution.

Answer 2

well way did the giganotosaurus got did is because the astod hit the earth and from the gas it made the dinosaurs died.

Answer 3

No one actually knows yet, but it is known that is became extinct in the 1980s.

Answer 4

The warm lush Paleocene and Eocene environment that it lived in changed. Climate change is often one of the root causes in extinction.