Researchers from Delhi University have discovered an 'egg-in-egg' dinosaur egg from Madhya Pradesh, which is probably the first time in the fossil history, said the university in a statement. According to the researchers, the discovery is a "rare and important find" as no ‘ovum-in-ovo’ egg was found in reptiles until now. The findings have been published in the latest issue of the journal, Scientific Reports.바카라 웹사이트
바카라 웹사이트The abnormal titanosaurid dinosaur egg was discovered in the Bagh area in MP라이브 바카라 Dhar district, and could provide important insights into whether dinosaurs had reproductive biology similar to that of turtles and lizards, or crocodiles and birds, their immediate cousins, they said.
The Upper Cretaceous Lameta Formation of central India has been long known for the discovery of dinosaur fossils (both skeletal and egg remains). The authors documented a large number of titanosaurid sauropod nests near Padlya village close to Bagh town. While studying these nests, the researchers came across one 'abnormal egg'.바카라 웹사이트
The research team found a sauropod dinosaur nest consisting of 10 eggs including the abnormal egg which had two continuous and circular eggshell layers separated by a wide gap reminiscent of ovum-in-ovo (one egg inside another egg) pathology of birds, read the statement. The microstructure of the pathological egg as well as that of an adjacent egg in the same nest identified it with that of titanosaurid sauropod dinosaurs.바카라 웹사이트
Until this find, no egg-in-egg abnormal fossil egg was found in dinosaurs and for that matter in other reptiles like turtles, lizards, and crocodiles, the statement said. In the past, it was suggested that dinosaurs had a reproductive function similar to that of turtles and other reptiles, in contrast to the segmented reproductive tract of crocodiles and birds with separate regions of membrane and shell deposition, the statement said.바카라 웹사이트 Although crocodiles have separate regions of shell membrane and mineralized shell deposition, they ovulate and release all the eggs simultaneously like turtles and other reptiles, as opposed to the sequential ovulation of birds, which lay one egg at a time, it added.바카라 웹사이트
“The finding of an ovum-in-ovo egg from a titanosaurid nest opens up the possibility that sauropod dinosaurs had an oviduct morphology similar to those of crocodiles or birds and they may have adapted to a mode of the egg-laying characteristic of birds,” said DU researcher Dr. Harsha Dhiman, lead author of the paper.
바카라 웹사이트Professor Guntupalli V R Prasad, who is the corresponding author of the published article, concurred with his colleague.바카라 웹사이트“The new pathological egg is a rare and important find as no ovum-in-ovo egg was found in reptiles until now and as it brings out significant information on whether dinosaurs had a reproductive biology similar to that of turtles and lizards or their immediate cousin바카라 웹사이트crocodiles and birds,” he added.
바카라 웹사이트The new find highlights the fact that central and western India holds great potential for dinosaur fossils which may offer important information on dinosaur oospecies diversity, nesting behavior, and reproductive biology, the statement said.바카라 웹사이트
