The fossil was found by Rubi, an 11-year-old girl, when she was walking with her father on a beach in the United Kingdom. The giant ichthyosaur looked similar to a dolphin, but was 25 meters long.

Researchers believe that their most giant version became extinct during the Triassic-Jurassic period 200 million years ago. The rocks in which the fossils have been found indicate "that a cataclysm would have caused a global mass extinction of the Late Triassic, Plos One reports. The discovery, now published in the journal Plos One, speaks of a species that was twice the size of a line collective - that lived in the Upper Tri Jurassic, in a time known as the Rhaetian. The bones date specifically from 202 million years ago, at the end of the Tri Jurassic period, when gigantic ichthysosaurs swam through the seas while dinosaurs walked on land. which is also similar to that of a blue whale.