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Paleontologist Paul Sereno found a rare juvenile duck-billed dinosaur mummy, "Ed Jr.," in Wyoming, revealing detailed soft tissue preservation.
Paleontologist Paul Sereno of the University of Chicago located the 1908 fossil site of a rare juvenile duck-billed dinosaur mummy, "Ed Jr.," in eastern Wyoming using historical records and a rancher’s family clue.
The discovery, published in Science, reveals unprecedented details of the 66-million-year-old Edmontosaurus annectens, including scaly skin, rhino-like hooves, tail spikes, and a fleshy crest preserved in thin clay templates.
Unlike Egyptian mummies, these are delicate impressions of soft tissues formed by floodwaters.
Experts praised the study for providing the most complete anatomical record of a large dinosaur from head to toe, though its color remains unknown.
El paleontólogo Paul Sereno encontró una rara momia de dinosaurio juvenil con pico de pato, "Ed Jr.", en Wyoming, revelando una preservación detallada de los tejidos blandos.