No penguin alive today can compare with some of the extinct giants that once roamed the planet, including Kumimanu fordycei, Petradyptes stonehousei and Palaeeudyptes klekowskii
). But even the biggest emperors alive today would be dwarfed by the mega-penguins that roamed Earth millions of years ago. Here are the most impressive of these ancient giants.at the Bruce Museum in Connecticut and his colleagues unearthed an unusually huge flipper bone of a penguin in southern New Zealand in 2018. “The big humerus was shocking to me,” he says. “I almost thought it was maybe some other animal.
The species was named after palaeontologist Ewan Fordyce, who made his own mega penguin discoveries in the 1970s .. With an estimated mass of 50 kilograms, it was quite a bit smaller than its contemporary. Its name comes from the Greek “petra” for rock and “dyptes” for diver, while “retained features seen in much earlier penguin species, such as slimmer flipper bones and muscle attachment points that look like those seen in flying birds.
Owing to their larger body size, giant penguins could remain underwater longer than smaller ones. Experts reckon that a species such asis prehistoric giant that lived more recently than those already mentioned – around 37 to 34 million years ago. Based on the few bones from the species that have been recovered, in 2006 Ksepka and his colleagues put it around 1.5 metres tall with a weight of over 100 kilograms.
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