About 125 million years ago, two Dinosaurs Probably dozens of people breathed their last breaths in an underground Buruja before it was likely buried alive by a volcanic eruption.
The preserved remains of these two nearly 4-foot-long (1.1 m) reptiles looked so clean that the researchers named the newly discovered species Changmia Liaoningensis, Which in Chinese means “eternal sleeping sleeper from Liaoning”.
“It’s a temporary hypothesis that both Changmia Liaoningensis While they were resting, the samples were suddenly thrown into a collapsed underground turret, which would explain their true lifeline postures “and their remains were not damaged by the elements or scavengers, the researchers wrote in the study.
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Two samples were discovered by Chinese farmers in Liaoning Province, northeastern China, which are now housed in the Palaeontological Museum of Liaoning. An international team of paleontologists from China, Argentina and Belgium then worked to study the unique anatomy of the “eternal sleeper”.
His analysis showed that C. Liaoningensis Was an early ornithopod, a type of vegetarian dinosaur that walked on two legs, such as Igunodon And the hardsaur, or duck-billed dinosaur. Given his powerful hind legs and long, stiff tail, this is a good bet. C. Liaoningensis The researchers said that was a fast runner.
other than this, C. Liaoningensis Probably there was an expert Burer, which is unusual among dinosaurs but Not without precedent.
“Some characteristics of the skeleton suggest that Changmiania Dig dig rabbit Today do, “Study senior researcher Pascal Godfroit, a paleontologist at the Royal Belgium Institute of Natural Sciences,” Said in a statement. “Its neck and forearm are very short but strong, its shoulder blades are characterized by burying vertebrae and the top of its snout is shovel-shaped.”
The Luziatun Beds, where these fossils were found, are known for exceptional fossils – the specimens were preserved by an ancient volcanic eruption, such as Cretaceous period Version of Pompeii (The Roman city which was destroyed but protected by an eruption from Mount Vesuvius in 79 BC). Other 3D fossils from this site provide evidence that some were dinosaurs Devoted parents, And that is the size of mammals once Small dinosaur banished.
In case of two C. Liaoningensis Dinosaurs, “it can be envisaged as to which Burr is in Changmiania The skeletons collapsed during the debris flow episode; We can alternatively assume that Changmiania The samples dug their layers into volatile volcanic material just after the debris flow, “the researchers wrote in the study, saying that” those explanations remain, of course, pure speculation, “because fossils were excavated by farmers Was gone, not scientific, so details about a certain place were not studied.
Researchers wrote in the study that even now, the life-saving posture of dinosaurs “implies that animals were rapidly entangled while they were still alive,” although it is possible that the sediment would cover them after death.
C. Liaoningensis Fossils reveal other clues about their lives. For example, unlike another dinosaur in the Luziatoon bed – Mei tall, Troodont dinosaurs like a bird Slept with your tail under your neck – C. Liaoningensis Slept with his tail spread. This is because the “everlasting sleeper” had a “rather stiff” tail with limited flexibility, the researchers wrote in the study. “Curling your tail under your neck Mei-So style was therefore impossible for Changmiania. ”
Another fossil clue contains a group of a dozen small pebbles found near the stomach area of one of the C. Liaoningensis Individuals. Researchers said these pebbles may be gastroliths or rocks that some animals swallow to help grind food during digestion.
The study was published online on 8 September in the journal PeerJ.
Originally published on Live Science.