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Baby Yingliang (YLSNHM01266) is a remarkably preserved dinosaur embryo discovered in Ganzhou, southern China. It was discovered in rock layers of the Hekou Formation, which dates to the Late Cretaceous. The embryo belongs to an oviraptorid theropod dinosaur, and the egg is classified as elongatoolithid.
The Egg and Them – Marshall finds an egg and Franklin hatches it into a baby T-Rex named Trixie. Trixie ensures her stay until she finds a mate. Trixie ensures her stay until she finds a mate. Moral Lesson : Being a parent is a great responsibility.
The interior of a dinosaur egg can be studied using CAT scans or by gradually dissolving away the shell with acid. Sometimes the egg preserves the remains of the developing embryo inside. The oldest known dinosaur eggs and embryos are from Massospondylus, which lived during the Early Jurassic, about 190 million years ago. [2] [3]
The previous record for the smallest non-avian dinosaur egg, according to Guinness World Records, measures 45-by-20 millimeters (about 1.77-by-0.79 inches). Discovered in Japan's Tamba City, this ...
Model of a dinosaur egg. Dinosaur reproduction shows correlation with archosaur physiology, with newborns hatching from eggs that were laid in nests. [1] [2] Dinosaurs did not nurture their offspring as mammals typically do, and because dinosaurs did not nurse, it is likely that most dinosaurs were capable of surviving on their own after hatching. [3]
Beibeilong laid one the largest known types of dinosaur eggs, Macroelongatoolithus. Its eggs measured around 40–45 cm (16–18 in) in length and had ruggedly ornamented eggshell surfaces. The typical Macroelongatoolithus nest was ring-shaped with one or two layers of eggs, and the center was largely devoid of eggs.
A pair of Macroolithus eggs. Macroolithus eggs are characterized by large size, measuring 16 to 21 cm (6.3 to 8.3 in) long, and by their particularly coarse ornamentation. [1] [2] Their microstructure is not well defined in the literature, [1] but generally follows the typical elongatoolithid pattern: [2] The eggshell is arranged into two structural layers (the mammillary layer and the ...
Many ancient reptile groups are known from egg fossils including crocodilians, dinosaurs, and turtles. [3] Some ancient reptiles, like ichthyosaurs [8] and plesiosaurs [9] are known to have given live birth and are therefore not anticipated to have left behind egg fossils. Dinosaur eggs are among the most well known kind of fossil reptile eggs. [3]