The discovery of Crossvallia waiparensis, a monster penguin from the Paleocene Epoch (between 66 and 56 million years ago), adds to the list of gigantic, but extinct, New Zealand fauna. These include the world’s largest parrot, a giant eagle, giant burrowing bat, the moa and other giant penguins.
C. waiparensis is one of the world’s oldest known penguin species and also one of the largest – taller even than today’s 1.2 metre Emperor Penguin – and weighing up to 70 to 80 kg.