Leedsichthys (name meaning "Filter-Feeder") is a genus of giant fish that grew to 17-25 meters in length and weighed up to 25 tons. It was among the largest creatures in the Jurassic seas, outweighing even the huge pliosaur Liopleurodon.


Era & DiscoveryEdit

Leedsichthys lived during the Late Jurassic period, 155-145 million years ago. It shared the waters with Hybodus, Metriorhynchus, Ophthalmosaurus, Cryptoclidus, and Liopleurodon.

Physical AttributesEdit

Leedsichthys were the biggest fish that appeared in the Jurassic period and the largest fish that ever lived. They grew to 27 meters (75-80 feet) long, and sometimes larger, making it the largest bony fish to ever live.

Behavior & TraitsEdit

Leedsichthys filtered out any tiny plankton, any small animals floating in the ocean. They also lived in huge sholls. At a certain time of year, the lived on their fat reverse and that really shorted out the healthy fish from the sick ones.