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 .

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.

2019年2月9日 · The three below are important trace fossils, just not eggs. Pic by Tony Martin, Ph.D. How to spot a real egg: The best and only true sign you have an actual egg is eggshell actually being present. Eggs come in many shapes from a semi-rounded, elongated oval to a perfect sphere and many others. Shape is not a good indicator of an egg. It is ...

2020年6月22日 · The new evidence that some dinosaurs and their extinct reptilian contemporaries laid eggs without hard shells helps explain the rarity of eggs in the first half of the fossil record,...

Fossilized dinosaur eggs displayed at Indroda Dinosaur and Fossil Park. Egg fossils are the fossilized remains of eggs laid by ancient animals. As evidence of the physiological processes of an animal, egg fossils are considered a type of trace fossil.

2025年2月3日 · A smattering of fossils have indicated what happened after mating, offering insights into the internal workings of egg-laying dinosaurs. One of the key fossils relevant to dinosaur reproduction is ...

Dinosaur eggs are fascinating and important fossils which allow us insights into the reproductive biology and behaviour of dinosaurs. Whole eggs are rare and clutches of eggs rarer still, however dinosaur eggshells are relitively common finds in many parts of the world.

2024年10月21日 · Now, after careful laboratory analysis, a team of paleontologists, evolutionary experts, and geoscientists have confirmed the specimens aren’t just some of the most complete dinosaur eggs ever...

Fossil eggs and nests are the only evidence about the reproductive biology of dinosaurs. Eggs and nests are called indirect fossils because they are not real (direct) parts of the organism that produced them. However, only the nests must be regarded as trace fossils.

2021年3月18日 · Within 70-million-year-old rock deposits located in southern China's Jiangxi Province, researchers unearthed a preserved fossil of an oviraptorosaur crouched over a nest of 24 eggs, reports...