500-million-year-old fossil helps fill a strange gap in our record of life on Earth
Artist's reconstruction of _Magnicornaspis garwoodi_ in life. Thomas Turner Roughly 500 million years ago, a strange event in the evolution of life on Earth seems to have taken place. The known fossil record from this time, which falls within the Cambrian period, contains a missing chapter. Palaeontologists refer to it as the “ Furongian gap ”. And it’s striking because there is an explosion of biodiversity within the fossil record both immediately before and after it. This d
Paleontologists have identified a new 500-million-year-old arthropod fossil, named *Magnicornaspis garwoodi*, discovered in Quebec, Canada. This finding challenges the long-held belief of a significant decline in biodiversity during the Cambrian period, known as the "Furongian gap." The fossil's unique defensive spines suggest earlier evolution of such traits within its group. The discovery was made by re-examining a specimen that had been stored in a museum collection for decades. This suggests the "gap" might be a result of limited fossil exploration in specific geological settings rather than a true biological crisis.
This discovery prompts a re-evaluation of our understanding of early life's evolutionary history and highlights the importance of museum collections for uncovering new scientific insights.
📌 Kaynak
Bu özet The Conversation AU kaynağından otomatik derlenmiştir. Tamamı için orijinal habere gidin.
Orijinal haberi oku →