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flag Scientists found rare juvenile dinosaur mummies in Wyoming, including the first known reptile hooves, preserved on land with soft tissues intact.

flag Scientists have discovered two exceptionally preserved juvenile dinosaur mummies in eastern Wyoming, including the first known juvenile duck-billed dinosaur with detailed soft tissue impressions. flag Preserved in a thin clay layer formed with microbial help, the fossils reveal skin textures, tail spikes, and hooves—marking the first known hooves in any reptile or land vertebrate. flag Unlike traditional mummification, this process occurred on land, challenging prior assumptions about how such preservation happens. flag The findings, published in Science on October 23, 2025, offer rare insights into dinosaur anatomy, growth, and behavior, emphasizing the importance of searching for soft tissue impressions in fossil hunting.

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