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167-Million-Year-Old Fossil Challenges Snake Evolution Theories

Breugnathair elgolensis, a 167-million-year-old fossil, combines snake-like jaws and lizard limbs, challenging previous views on early snake and lizard evolution, researchers say.

  • A new species of Jurassic reptile, named Breugnathair elgolensis, was discovered by an international team including National Museums Scotland on the Isle of Skye.
  • Breugnathair elgolensis had snake-like jaws and teeth but retained limbs typical of lizards, suggesting it is related to parviraptorids.
  • Dr Roger Benson noted that the discovery may change our understanding of snake evolution as it displays both primitive and specialized features.
  • Dr Stig Walsh emphasized that the fossil is a significant addition to the record, enhancing knowledge of the evolution of lizards and snakes.
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Meet the Jurassic predator that confused scientists for 30 years

The Breugnathair elgolensis which means “false snake of Elgol,” is one of the oldest lizard fossils ever found.

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Nature broke the news in United Kingdom on Wednesday, October 1, 2025.
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