The ancient cephalopod, Nanaimoteuthis haggarti, appears to have been an apex predator that rivaled mosasaurs to rule prehistoric seas.

Scientists have identified two species of giant finned octopuses from the Late Cretaceous, with one, Nanaimoteuthis haggarti, estimated to reach up to 62 feet long. Fossilized beaks and advanced ...

Some octopuses that lived over 72 million years ago were as long as whales. These huge predators may have been the largest invertebrates ever.

‘Kraken’ fossils show enormous, intelligent octopuses were top predators in Cretaceous seas Fossil jaws from colossal octopuses place them at the top of a prehistoric marine food chain ...

New analyses of fossilized jaws reveal that massive, kraken-like octopuses once hunted alongside other marine predators.