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Previously Unknown 76M-Year-Old, Raccoon-Sized Monstersaur Species Discovered in Utah

SOUTHERN UTAH, UNITED STATES, JUN 17 – The armored lizard Bolg amondol reveals surprising Late Cretaceous lizard diversity and biogeographic links between North America and Asia, researchers said.

  • Researchers published a study on June 17 describing Bolg amondol, a raccoon-sized extinct monstersaur from Utah's Late Cretaceous period.
  • The species was recognized after fossils discovered in southern Utah two decades ago were carefully studied.
  • Bolg coexisted with at least two other large predatory lizard species in a stable, subtropical ecosystem about 76 million years ago in southern Utah.
  • Associate professor Randy Irmis highlighted that Bolg demonstrates how valuable natural history museum collections are for scientific research, emphasizing the fossil’s rarity and significance.
  • This discovery suggests more large-bodied lizards inhabited Late Cretaceous North America, highlighting diverse prehistoric ecosystems and the importance of preserving public fossil lands.
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+15 Reposted by 15 other sources
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Newly discovered armored lizard named after ‘Hobbit’ baddy

Bolg amondol was a "goblin prince" among dinosaurs around 78 million years ago.

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NewScientistNewScientist
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Anti-Aging, Acupuncture and Health NewsAnti-Aging, Acupuncture and Health News
Center

Ancient monstersaur had 'goblin-like' teeth and sheddable tail

The discovery of a prehistoric tail-shedding reptile reveals more about large lizard life and lineage during the Late Cretaceous Epoch

·Baltimore, United States
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Phys.org broke the news in United Kingdom on Tuesday, June 17, 2025.
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