Paleontologists Uncover A Nest Of Baby Dinosaurs In Mongolia's 'Dragon's Tomb'

A rare nest of baby giant hadrosaurs has been discovered by paleontologists in Mongolia’s Gobi Desert. The area this fossil nest was found in is known as the “Dragon’s Tomb” as it has produced a vast amount of fossils of this giant hadrosaur, Saurolophus angustirostris, since its discovery in 1947. This find is described by Leonard Dewaele of Ghent University and colleagues in PLOS ONE.
Although S. angustirostris is extremely common in these rocks of the Nemegt Formation, this is the first time embryonic remains of this species have been described. Additionally, this nest of 3-4 individuals was found associated with eggshell fragments. It is rare to find eggshells present with an embryonic dinosaurs, but it is very useful because then it allows a specific eggshell type to be associated with a specific species or group of dinosaur.

(Credit: PLOS One)
(Credit: PLOS One)
A variety of clues that indicate these dinosaurs are definitely perinatal specimens. The first clue is the length of the skulls, which are only about 5% the length of the adult S. angustirostris. Also, when magnified the bones appear spongey and lack ossification at specific joints, which indicate these were very young animals at the time of death.
The characteristic head crest of S. anguistirostris isn’t seen in these fossils, but unfused skull bones indicate that this feature had likely not yet appeared at that stage of development. Lead study author Leonard Dewaele explains, “The poorly developed crest in Saurolophus babies provides evidence of ontogenetic crest growth within the Saurolophini tribe.”
This discovery gives a unique look into the growth of this feature over the life span of this enigmatic extinct animal.
Geological evidence around the fossil indicates that this nest was laid along a river bank. They likely died at some point close to birth and were subsequently buried by the migrating river system. All signs indicate these were baby dinosaurs, but it remains impossible to say whether they died before or during birth.



Post a Comment

Facebook page

Powered by Blogger.


Advertising in Mongolia An Culture Editorial of the Mongolianviews education Environmental protection Famous Mongolians Foreigners in Mongolia Inner Mongolia Ivanhoe Mines Mongolia agriculture Mongolia analysis Mongolia and Australia Mongolia and Belorussia Mongolia and Cambodia Mongolia and Canada Mongolia and central Asia Mongolia and China Mongolia and Cuba Mongolia and EU Mongolia and Germany Mongolia and Hongkong Mongolia and Hungary Mongolia and India Mongolia and Inner Mongolia Mongolia and Iran Mongolia and Italy Mongolia and Japan Mongolia and Kazakhstan Mongolia and Korea Mongolia and Kuwait Mongolia and Malaysia Mongolia and Nato Mongolia and North Korean Mongolia and Poland Mongolia and Russia Mongolia and Singapore Mongolia and South Korea Mongolia and Taiwan Mongolia and the world Mongolia and Tibet Mongolia and Turkey Mongolia and UK Mongolia and Ukraine Mongolia and UN Mongolia and USA Mongolia and Vietnam Mongolia Banking Mongolia civic society Mongolia crime Mongolia diplomacy Mongolia Economy Mongolia Education Mongolia Energy Mongolia Finance Mongolia Health Mongolia History Mongolia holiday Mongolia in international media Mongolia Industries Mongolia Joke Mongolia law Mongolia LGBT Mongolia medical Mongolia military Mongolia Mining Mongolia Mining Developments Mongolia Mortgage Mongolia natural disaster Mongolia Petroleum Mongolia public announcements Mongolia railways Mongolia Religion Mongolia society Mongolia Sports Mongolia Stamp Mongolia telecommunication Mongolia tourism Mongolia Urbanization Mongolia Wild Life Mongolian Agriculture Mongolian Archeology Mongolian Food Mongolian Gay Mongolian Government news Mongolian History Mongolian Military Mongolian Mining Development Mongolian Movie Mongolian News Mongolian Parliament Mongolian Political news Mongolian Press Mongolian Songs Mongolian Women Mongolian Youth Mongolians abroad Moninfo Opinion Oyu Tolgoi Investment Agreement Photo news Press Release Rio Tinto Tavan Tolgoi coal mine Ulaanbaatar development Weird expatriates in Mongolia

Blog Archive


Live Traffic