About 240 million years ago, the predators of the Triassic Brevicaudosaurus jiyangshanensis arose, almost Inactive, at sea – and researchers have found clues in its bones that could explain its unusual hunting methods.
Scientists at the Chinese Academy of Sciences in Beijing and the Canadian Museum of Natural History In Ottawa, two fossils were found in two layers of limestone in southwestern China. The most complete skeleton, only 60 centimeters long, was found in a quarry in Jiangshan.
Experts have identified the 240-million-year-old carcass as a previously unknown animal: a small-headed reptile with a flock of birds, wing-like arms and long necks. Nothosaurs typically have longer tails, which experts think are used for stimuli – but the reptiles discovered here have short, flat tails.
Researchers have noted that reptiles are more developed than their limbs, and can play a role in helping the animal swim. With the bones on its walls and ridges – including the spine and side bones – it looks quite solid and solid.
What’s more, Experts believe that Brevicaudosaurus jiyangshanensis does not have to be a fast swimmer. However, its dense bone may help it to have an advantage: Stability. Its bones and walls can make it neutral in shallow water, and with the help of its flat tail, the predator can swim underwater without moving while using cane energy.
Researchers also believe that this could lead to the use of a neutral balcony for seaweed in search of food.
Experts in the study of Qing-Hua Shang, a research specialty of the University of Sciences said: “The analysis of our bones are preserved as well as two shows reptiles body with Osteoporosis broad and tail short. In a statement.” Long tail can be used to shed water, creating awareness, but species that we’ve identified that might be more appropriate to hang near the bottom of the shallow sea, using the tail short and flat to balance, like underwater float, allowing it to maintain power while looking for prey, “Chang said.
These reptiles are best suited for underwater hunting ຳ: Neutral rearing should allow it to walk on the seabed in search of slow-moving wildlife. At the same time, the high skeletal permeability of the skeleton also indicates that the reptile has large lungs, making it possible for the animal to spend time without looking.
Paleontologists have discovered another feature that will help Brevicaudosaurus venture underwater ຳ: The animal also has baskets and long – bone-shaped bones in the middle ear, used to transmit sound – which can help reptiles hear underground.
Xiao-Chun Wu, co-author of the Canadian Museum of Natural Animals, said: “Perhaps this small, slow-moving reptile must be careful of large predators while they are swimming in the shallows, as well as their own pets.” , In a statement.