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The first scientifically recognized non-avian dinosaur egg fossils were discovered in 1923 by an American Museum of Natural History crew in Mongolia. Dinosaur eggshell can be studied in thin section and viewed under a microscope .
17 cze 2020 · The 68-million-year-old egg, called Antarcticoolithus bradyi, is the first fossil egg ever found in Antarctica, only outsized by the eggs of Madagascar’s extinct elephant bird.
Tematy dnia
22 cze 2020 · A fossilized Mussaurus egg that was the subject of one of two new studies documenting soft-shelled eggs at the time of the dinosaurs. Mussaurus was a long-necked, plant-eating dinosaur that...
Until the 1980s, discoveries of fossilized eggs and bones of young dinosaurs were extremely rare, but dinosaur eggs have now been discovered on several continents, and fossils of hatchlings, juveniles, and adults have been found for most major groups.
9 kwi 2020 · The world's oldest dinosaur eggs are helping us understand how baby dinosaurs grew. New high-powered scans of an early dinosaur species' fossilised eggs are showing for the first time how the animals' teeth developed while still inside the egg.
3 lip 2020 · Dinosaur eggs have been found all over the world in deposits ranging widely in age. However, most dinosaur egg fossils are relatively young (geologically speaking). It has long been thought that dinosaurs laid eggs with hard and rigid shells , like crocodiles, birds and some turtles and geckos.
17 cze 2020 · The calcified, hard-shelled dinosaur egg evolved independently at least three times throughout the Mesozoic era, explaining the bias towards eggshells of derived dinosaurs in the fossil record.
