Meraxes gigas was described as a meat-eating, Tyrannosaurus rex-like dinosaur in a new study.
Researchers also found burned bones and carved stones.
Llukalkan aliocranianus appears to have been a top predator in its time, with hearing capabilities potentially exceeding those of similar dinosaurs.
The Tyrannosaurus rex and Triceratops horridus known as the dueling dinosaurs were buried together 67 million years ago on a Montana hillside.
Researchers believe the findings will cement New Zealand’s place as the penguin center of the world.
“I will probably spend the rest of my career working on this site," said paleontologist Robert Gay.
Humans may have migrated out of Africa much earlier than scientists previously believed.