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Bolg amondol: New monstersaur reveals complex evolutionary history of giant Gila monster relatives

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New species Bolg amondol is an ancestor of modern Gila monsters.

Bolg , along with other fossils from the Kaiparowits Formation , demonstrate that at least three types of predatory lizards lived in the Late Cretaceous sub-tropical floodplains of what is now Southern Utah .

"Mound-headed Bolg " would fit right in with the goblin prince from "The Hobbit ," said lead author Hank Woolley .

Bolg 's closest known relative hails from the other side of the planet in the Gobi Desert of Asia .

The rocks where Bolg was discovered have emerged as a paleontological hotspot over the past 25 years .

Discovery underscores the importance of preserving public lands in the Western U.S. for science and research.