Discovering Australia’s Giant Prehistoric Trapdoor Spider: Megamonodontium mccluskyi

Discovering Australia’s Giant Prehistoric Trapdoor Spider: Megamonodontium mccluskyi

Title: Fossilized Giant Trapdoor Spider Discovered in Australia Provides Glimpse into Prehistoric Rainforest

Subtitle: Researchers unveil fourth-ever specimen of its kind and shed light on Australia’s climate history

[City], [Date] – Scientists have recently made an exciting discovery in New South Wales, Australia, unearthing a fossilized giant trapdoor spider that once roamed the lush rainforests of the region millions of years ago. This remarkable find, named ‘Megamonodontium mccluskyi,’ is only the fourth spider fossil ever found in Australia and is reshaping our understanding of the country’s evolutionary history.

According to a report filed by researchers, the spider would have inhabited the area during the Miocene period, approximately 11 million to 16 million years ago. This discovery provides valuable insights into the extinct species and fills a significant gap in our knowledge about the past.

Palaeontologist Matthew McCurry from the University of New South Wales and the Australian Museum commented, “Only four spider fossils have ever been found throughout the whole continent, which has made it difficult for scientists to understand their evolutionary history. 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.”

The ancient spider, measuring 23.31 millimeters long, is a member of the trapdoor spider family Barychelidae and is approximately five times larger than its modern-day relatives. Its body structure and features closely resemble those of the modern Monodontium, also known as the trapdoor spider.

The researchers believe that the spider’s presence in the fossilized rainforest sediment provides insights into Australia’s past climate. The fact that the spider was found in a region that is currently a grassland suggests that the area was once much wetter. This finding could help scientists comprehend how a warming climate has already transformed the country’s ecosystems and could potentially alter them in the future.

Additionally, the study revealed that the closest living relative of the fossilized spider now resides in the wet forests spanning Singapore to Papua New Guinea. This implies that Megamonodontium mccluskyi once occupied similar environments in mainland Australia but eventually became extinct as the land became drier.

The research team used advanced scanning electron microscopy techniques, enabling them to examine intricate details of the spider’s claws, setae (hairs) on its legs and body. This level of analysis helped confirm the spider’s classification and shed light on its physical characteristics.

Arachnologist Robert Raven from Queensland Museum expressed his excitement about the discovery, stating, “Not only is it the largest fossilized spider to be found in Australia, but it is the first fossil of the family Barychelidae that has been found worldwide. There are around 300 species of brush-footed trapdoor spiders alive today, but they don’t seem to become fossils very often. This could be because they spend so much time inside burrows and aren’t in the right environment to be fossilized.”

The findings of this groundbreaking study have been published in the Zoological Journal of the Linnean Society. By unveiling new information about prehistoric spiders and Australia’s climate history, researchers hope to deepen our understanding of the impact of climate change on various life forms in the country.

As scientists continue to explore and unearth ancient fossils, the puzzle pieces of Australia’s evolutionary past are slowly coming together, revealing fascinating stories about the creatures that once roamed its rainforests millions of years ago.


Note to editors: The discovery of the fossilized giant trapdoor spider contributes significantly to our understanding of Australia’s evolutionary history and climate change. This finding highlights the importance of ongoing research in unveiling the secrets of the past and their relevance to the present and future.


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