Gastornis was a genus of very large, flightless birds with absurdly large heads. The largest could grow as tall as the biggest moa, 2 m (6 ft 7 in) at most.
While they look similar to terror birds, they were actually more closely related to ducks and geese. Gastornis was originally thought, like a terror bird, to be carnivorous, but is now more widely believed to have actually been herbivorous.
This Gastornis lives in a black-and-white handheld game, like those enjoyed by children in the 90s.
(Paleocene-Eocene, 58.7 - 48.6 million years ago)