Copolites, or fossil excrement, of dinosaur-like archosaur Smok wawelski contains many chew bone fragments. This led researchers at Uppsala University to conclude that this supreme predator exploited salt and bone marrow, a behavior often associated with mammals, but rarely for archaeologists.
Most predatory dinosaurs used their teeth as a blade to feed on their prey, but it is not commonly considered to be many bone mills. The main exception is seen in large tyrannosaurs, as is Tyrannosaurus rex, which flooded North America towards the end of the dinosaur era. The tyrannosaurs are thought to be osteophagous (voluntary exploitation of the bones) based on the findings of the crowned bone rich bones, costume bones, and their robust teeth that are most commonly worn.
In a study published in Scientific reports, researchers at Uppsala University managed to link the ten major croolites Smok wawelski, the ultimate predator of the late Triassic accumulation (210 million years ago) unearthed in Poland. This bipedal, 5-6 meter long animal lived about 140 million years before the tyrannosaurs in North America and there were T. rexlike appearance, although it is not entirely clear whether it is a real dinosaur or a dinosaur-like predecessor.
Three of the croats were scanned using synchrotron microtomography. This method has recently been applied to coprolite and works as a CT scanner in a hospital, with the difference that energy in X-rays is much stronger. This allows to visualize the internal structures in the fossils in three dimensions.
It has been shown that the croats contain up to 50 per cent of prey bone animals, such as large amphibians and juvenile dichidodons. Several crushed toothed teeth, probably belong to the coprolite producer itself, are also found in the coprolites. This means that the teeth were constantly crushed with hard foods (and unwanted swallowed) and replaced with new ones.
Additional evidence of bone behavior can also be found in fossils of the same bony beds in Poland. These include teeth and rich bone fossil regurgitation Smok wawelski, as well as numerous crushed or reinforced bones.
Some of the anatomical characters associated with osteopathy, such as a massive head and a robust body, seem to share them S. wawelski and tyrannosaurs, although they are remote and live 140 million years. Therefore, these large predators seem to provide evidence of similar feeding adaptations that are independently acquired at the start and end of the dinosaurs.
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