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American Focus > Blog > Tech and Science > Scientists Peered Inside The Tiniest Dinosaur Egg Ever Found : ScienceAlert
Tech and Science

Scientists Peered Inside The Tiniest Dinosaur Egg Ever Found : ScienceAlert

Last updated: October 25, 2024 3:42 pm
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Scientists Peered Inside The Tiniest Dinosaur Egg Ever Found : ScienceAlert
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The Discovery of the Smallest Dinosaur Egg Ever Found

A recent three-year study has confirmed that the ‘Ganzhou Mini Egg’ is the smallest dinosaur egg ever discovered. Measuring just 30 millimeters in length (approximately 1.18 inches), this egg surpasses the previous record holder, the 45.5-millimeter-long Jinguo Micro Ellipsoid Egg.

The remarkable finding was made in 2021 at a construction site near Ganzhou City in China, where a clutch of six nearly intact eggs was unearthed. Using advanced techniques such as electron microscopy and electron backscatter diffraction, researchers were able to examine the contents of these 80 million-year-old eggs without causing any damage.

Researchers Have Peered Into The Tiniest Dinosaur Egg Ever Found
Dinosaur egg fossils discovered in the city of Ganzhou, east China’s Jiangxi Province. (China University of Geosciences)

Upon closer examination, geoscientist Rui Wu and his team from the China University of Geosciences identified the eggs as belonging to a non-avian theropod dinosaur, rather than a direct bird relative. The discovery led to the identification of a new species, Minioolithus ganzhouensis, and shed light on the diversity of theropods in the Late Cretaceous period.

Two ochre and white egg shaped fossils
The previous smallest dinosaur eggs of Parvoblongoolithus jinguoensis, found in 2014. (ZHANG Shukang)

Unlike bird eggs, which have three shell layers, the Ganzhou mini eggshell only has two layers, indicative of its non-avian dinosaur origins. The unique characteristics of the eggshell, including its thinness, pore system, and pattern, place Minioolithus ganzhouensis within the Ovaloolithus group.

Further analysis revealed that the abundance of tiny fluid sacs in the shell sets the Ganzhou Mini Eggs apart from other ovaloolithus eggs, indicating a new species within the group. These ovaloolithus eggs are believed to belong to herbivorous triceratops ancestors, known as protoceratopsids, which were relatively small dinosaurs found in Asia.

Continued research at the discovery site is expected to provide additional insights into the nesting habits and reproductive behaviors of these ancient dinosaurs. The findings of this study were published in Historical Biology.

See also  This Drug Reduces Symptoms Before a Migraine Strikes, Study Shows : ScienceAlert

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