Crystal-filled dinosaur eggs the size of cannonballs found in China

Crystal-filled dinosaur eggs the size of cannonballs found in China

Two fossilized dinosaur eggs the size of a cannonball filled with calcite crystals found paleontologists in the Qianshan basin of Anhui province in eastern China, formerly owned by an unknown species of dinosaurs and found to be filled with calcite crystals.

Three eggs were dug out of the soil of the pool, but only two were preserved. The researchers who made the discovery noted that the third was "lost and still in the process of collecting." It is unclear whether it is lost, damaged during excavation or stolen. The two remaining two classified as belonging to the Shixingoolithus qiansanensis, which makes them a recently described ooid. Oovides, ores and oofamilies are taxonomic names of dinosaurs known only by their eggs.

According to researchers, eggs of "nearly spherical shape" are about the size of a cannon core. The length of an object is between 105 and 137 mm and the width is between 99 and 134 mm. One of the two eggs collected was partially broken; its inner surface is "covered by a layer of calcite crystals, written by researchers.

Calcite is a carbonate mineral commonly found in the eggs of birds and dinosaurs. Calcite crystals are formed when calcium carbonate is also involved in the strengthening of bones, teeth and nails, is separated from the structure of the egg shell and is deposited on its inner surface in the form of slow-growing crystals.