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Dinosaur with oldest EVER 'belly button' seen in 125-million-year-old fossil from China - Daily Mail

Dinosaur with oldest EVER 'belly button' seen in 125-million-year-old fossil from China - Daily Mail

Dinosaur with oldest EVER 'belly button' seen in 125-million-year-old fossil from China - Daily Mail
Jun 23, 2022 36 secs

A 3D reconstruction of a reclining Psittacosaurus showing the long umbilical scar surrounded by distinctive scales that was identified by study team.

While the egg-laying nature of dinosaurs predicts a long belly button scar, this study is the first to support this hypothesis with fossil evidence

Laser-stimulated fluorescence (LSF) image of the whole Psittacosaurus specimen showing the location of the umbilical scar

Insets show the umbilical scar close-up, including the distinctive scales surrounding it (highlighted in blue in the line drawing)

“Using LSF imaging, we identified distinctive scales that surrounded a long umbilical scar in the specimen, similar to certain living lizards and crocodiles

'This specimen is the first dinosaur fossil to preserve a belly button, which is due to its exceptional state of preservation.'

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