That is the conclusion of a study by scientists from George Washington University, which Friday published in the Current Biology, writes the BBC.
The researchers describe the discovery as a surprise; there is no other reptielensoort known in which the same phenomenon occurs.
The Limusaurus (‘modderhagedis’) lived about 150 million years ago in China. The first fossils of the species were ten years ago discovered.
Beaks
Dr. Stephen Brusatte of the university of Edinburgh, the research team was impressed with the results of the study. “Who would have ever thought that there dinosarussen existed that when babies teeth, they over time lost, and ended up as a toothless adults with beaks?”
“There is never such a thing seen in any other vertebrate fossil and the only modern land animal that something similar does is the platypus,” he said to the BBC.
it is expected that the discovery will help to find out how the bill has developed.
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