We found teeth of animals of different ages - both adults and young. This suggests that
polar stegosaurs most likely led a sedentary lifestyle: they reproduced and raised their offspring in the same territory all year round. Pavel Skuchas, research leader and associate professor at St. Petersburg State University
The authors of the work studied the teeth and found that they were all severely worn down from contact with neighbors.
Based on this information, they concluded thatThis type of dinosaur changed its teeth quite often: it took about 95 days for the formation of one tooth in dinosaurs of this genus, while in others it took 200 and longer.
This also means that stegosaurs did not suffer from caries, it simply would not have had time to form on the teeth.
On the surface of the worn teeth, scientists saw curved microgrooves. Previously, paleontologists assumed that stegosaurs were characterized by very simple jaw movements - up and down, like scissors.
Now, thanks to the patterns discovered, it became clear that the movement of the jaws was more complex and included a longitudinal phase.
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