Ieldraan melkshamensis: New Type of Jurassic Marine Crocodile is Discovered!

A new prehistoric sea monster has been discovered – after one of its fossils spent almost 150 years sitting in a museum.

The ancient reptile is called Ieldraan melkshamensis, or the Melksham Monster, after the Wiltshire town where the fossil was originally found.

The fossil has been owned by the Natural History Museum since 1875, but sat in its archives until a closer look revealed it held information about this distant relative of today’s crocs!

The extinct creature, named Ieldraan melkshamensis, is a member of Geosaurini, a sub-family of prehistoric crocodiles.

Fossil showing the croc tooth
The fossil shows one of the distinctive teeth of the lower jaw, which was found by scientists at the University of Edinburgh. DAVID FOFFA/UNIVERSITY OF EDINBURGH

Dinosaur experts at the University of Edinburgh investigated the fossil, and used the monster’s distinctive skull, lower jaw and teeth to identify it as a new species, from the Jurassic era – that’s 145 to 200 million years ago.

Dr Steve Brusatte, from the University of Edinburgh, said: “The Melksham Monster would have been one of the top predators in the oceans of Jurassic Britain, at the same time that dinosaurs were thundering across the land.”



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