Giant Devonian scorpion identified from 400-million-year-old fossils in Britain

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1. 19d ago

   Giant Devonian scorpion fossils reveal Earth's largest known predator

   A newly confirmed giant scorpion species, *Praearcturus gigas*, dominated Early Devonian ecosystems around 415 million years ago, with fossil evidence from Britain showing a body length exceeding one meter. This apex predator likely thrived in shallow waters and may have been the largest scorpion ever recorded. The discovery refutes earlier misclassifications of the fossils as crustaceans. Fossil fragments from England and Wales support its size and ecological dominance.

   What's confirmed:

   • The species *Praearcturus gigas* is now confirmed as the largest scorpion ever discovered, with a body length exceeding one meter.
   • Fossil evidence of *Praearcturus gigas* was first described in 1870 from Old Red Sandstone deposits in England and Wales.
   • This scorpion lived approximately 415 million years ago during the Early Devonian period.
   • The creature likely thrived in shallow waters and may have been an apex predator in its ecosystem.
   • Fossil fragments suggest the scorpion had a body length of about one meter, with some sources describing it as the size of a large dog.
   • The species was initially misclassified as a crustacean before being reidentified as a giant scorpion.

   Still unconfirmed:

   • The scorpion may have spent much of its life in water, though this claim lacks direct fossil evidence.
   • Some sources describe the scorpion as resembling the size of a baseball bat, but this conflicts with confirmed length estimates exceeding one meter.
   • Claims that the scorpion ruled ancient Britain as a dominant predator lack precise ecological context in available sources.
   confidence 97%