"Giant" Trapdoor Spider Fossil Unearthed in Australia

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The spider is believed to have roamed the lush rainforests (Credit: Australian Museum)

Australian researchers recently unveiled an exceptionally well-preserved fossil of an ancient spider. The arachnid roamed the continent between 16 million and 11 million years ago. Megamonodontium mccluskyi was unearthed at the McGraths Flat in New South Wales. Once covered with lush rainforests, the site has an abundance of insect and plant fossils that existed during the Miocene era. Many are new to science.

The team, led by Australian Museum paleontologist Dr. Matthew McCurry, suggests that the spider was likely a member of the Barychelidae family. Its present-day counterparts, the brush-footed trapdoor spiders, thrive in the rainforests of Singapore, Indonesia, and Papua New Guinea. However, they are about one-fifth the size of their ancient relative, which measured about 2 inches (50 mm) from toe to toe. For comparison, that is about the size of your palm!

An artist's rendition of M. mccluskyi (Credit: Australian Museum)

The scientists published their findings in the Zoological Journal of the Linnean Society on September 20, 2023. They assert that the discovery is important for several reasons. M. mccluskyi is the first known member of the Barychelidae family to be found. Additionally, it is one of just four spider fossils ever documented in Australia. Spider fossils are rare worldwide because soft-bodied creatures do not fossilize easily. Fossilization typically favors the preservation of more resilient structures, such as bones.

"That is why this discovery is so significant. It reveals new information about the extinction of spiders and fills a gap in our understanding of the past," said team member Simon McClusky, after whom the spider was named.

Resources: ZMEscience.com, CNN.com, Australian.museum

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93 Comments
  • ah6568
    ah6568almost 1 year
    I love spiders
    • elmo129
      elmo129almost 1 year
      did you guys read it it was a good story
      • spacer
        spacerabout 1 year
        Creepy, but cool.
        • riniroroholo
          riniroroholoabout 1 year
          I have a fear of spiders, and I can't imagine how freaked out I would be if I woke up to this giant spider in my face. :0
          • vakejafofagu
            vakejafofaguabout 1 year
            i love spider it reminds me about tailor swift
          • leah23596
            leah23596about 1 year
            I was not so arfreid until now there even more creepy (no afence to anyone who loves spiders)
            • gojo_fan
              gojo_fanabout 1 year
              I don't mind spider if they do not jump in my face or bite me. I thought the spider was going to be bigger :(
              • coolcoy
                coolcoyabout 1 year
                I wish I was a giant spider too
                • miles_milkshake
                  miles_milkshakeabout 1 year
                  1. I like spiders, they are actually really cool and I dont find them scary as I dont see why people find them scary. This seems awesome, not just cause its a fossil of a spider, but also because we found a fossil in my home country of Australia! 2. AUSSIE AUSSIE AUSSIE
                • imath926
                  imath926about 1 year
                  if i found a live giant spider i would give it to the zoo so they could keep it alive