New carbonate analysis method applied to eggshells from Troodon, reptiles and birds

Summary: An international research team has determined that Troodon, a dinosaur very close to modern birds, was a warm-blooded animal (an endotherm), but had a reproductive system similar to that of modern reptiles. The scientists applied a new method which allowed for accurate determination of the temperature when the egg’s carbonate shell was formed. Furthermore, the researchers showed that Troodon laid 4 to 6 eggs per clutch. As nests with up to 24 Troodon eggs had been found, the scientists conclude that several Troodon females laid their eggs in communal nests.

https://digiofficial.com/2023/04/28/analysis-of-dinosaur-eggshells-bird-like-troodon-laid-4-to-6-eggs-in-a-communal-nest/