First Dinosaur Eggs were so Soft-Like Tortoise Eggs.

The first dinosaur eggs were as soft as tortoise eggs.

New research shows that early dinosaurs laid soft-shelled eggs. This study analyzed the eggs of two different non-avian dinosaurs and found that their micro-structures and characteristics were similar to those of turtle eggs. The study further found that hard-shelled eggs evolved at least three times in dinosaur family trees.

According to Mike Norwell, chief curator of the Museum's Division of Plantology, "It has always been thought that the eggshells of ancient dinosaurs were tough. In the last twenty years we have found the eggs of many dinosaurs around the world.

But most of the time these groups of three eggs could be seen. Such as: Theropod dinosaurs including the current birds. There are also improved hydrosaurus to look like duck's lips and improved saropods for long necks. At the same time, more than a thousand bones have been found in serotonin dinosaurs, but no eggs have been found. ”

Amniotic dinosaur: This is a genus of birds, mammals and reptiles. Their eggs are usually made of an inner membrane or "ammonia", which protects their embryo from drying out. Some amniotic fluid such as turtles, lizards and snakes lay eggs with thin shells.

The rest (e.g. birds) lay hard and calcified eggs. These calcified eggs are actually the result of evolution and such a form protects them from environmental conditions. It sets a milestone in the history of amniotic fluid because it has made the reproductive process successful, contributing to the spread and diversity of the tribe.

Fossil records of soft-shelled eggs are very rare, making it even more difficult to study the process by which dinosaur eggs transform from soft to hard shells. This is because the current incarnations of living dinosaur species, such as birds and crocodiles, lay hard-shelled eggs. This type of egg shell is thought to exist in all non-avian dinosaurs.

Researchers have studied the fossils of embryonic eggs of two species of dinosaurs. These are Protoseratop and Mesarosus.

The Protoseratopras were sheep-eating herbivorous dinosaurs that lived in present-day Mongolia about 75 to 81 million years ago. On the other hand, the long-necked Mesarosras are also herbivorous dinosaurs that were up to 20 feet tall and lived in present-day Argentina from 226 to 206.5 million years ago.

Specimens of protoseratops were exceptionally preserved where at least 12 eggs and embryos were together, six of which were fully preserved with skeletons. Most of these are associated with embryos whose spine and wings are flexible which corresponds to the position of the animal as it grows inside the egg and a scattering of black and white egg-shaped cycles that obscure parts of the skeleton.

According to Jasmine Weiman, author of the study and a graduate student at Yale, "this is a great claim, but we need more extraordinary information." We need a brand new method to be sure about this so that we can see how the eggs came to life. And we don’t just want results with the effects of some new unknown fossils. We now have a new method that can be used to answer all new questions. We even need a lot of clear evidence that complements morphological and histological events for the soft-shelled eggs of dinosaurs.

Science Researchers have created a "super tree" with information on the chemical composition and properties of 112 other extinct and living homologous species of egg shells to detect the evolution of the structure and properties of egg shells at different times. The findings show that hard and soft shell eggs evolved three times during the time of the dinosaurs and probably evolved from an ancient soft shell egg.

According to Matteo Fabbury, another Yale graduate student, “This is more logical than the previous hypothesis in terms of evolution. We learned a few days ago that the eggs of all the amniotic ancestors were soft.

By researching we can further learn that the genus Ancient Archaeosaurus included the soft-shelled eggs of dinosaurs, crocodiles and pterosaurs. But people are still stuck learning about dinosaurs, including the current archaeosaurus, such as crocodiles and birds.

Soft-shelled eggs are much more sensitive to water droplets and this gives them little protection from stress. The researchers suggested that the eggs were probably buried in moist soil or sand and then heated with perishable plants to heat the eggs, which is similar to some of today's reptile eggs.