New species of extinct marine reptile found with help from 11-year-old child

Paleontologists already know that the extinct marine reptile ichthyosaurs were enormous. Some newly described jawbone fossils uncovered in England represent a new ichthyosaur species. The bones indicate that the ocean titan may have been over 82 feet long, and even pushed the possible limits of vertebrate size. The new find is detailed in a study published April 17 in the open-access journal PLOS ONE. “This research has been ongoing for almost eight years.

Dean Lomax “I was amazed by the find. In 2018, my team studied and described Paul’s giant jawbone and we had hoped that one day another would come to light,” said Lomax. “This new specimen is more complete, better preserved, and shows that we now have two of these giant bones–called a surangular–that have a unique shape and structure. I became very excited, to say the least.

Gabriel Ugueto/ The bones are about 202 million years old and date back to the end of the Triassic Period called the Rhaetian. During the Rhaetian, gigantic ichthyosaurs swam while dinosaurs walked on land. However, this was when ichthyosaurs’ time on Earth came to a close. They went extinct during the Late Triassic global mass extinction event some 200 million years ago and these bones represent the very last of their kind. Dinosaurs would not go on to live another 134 million years.

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