The unusual fossil was found in Brazil and is the first of its type from South America to show evidence of feathers. The authors of the study think that the wide pane would have been used for demonstration and that dinosaurs had good mating behavior when pregnant.
“If confirmed, this discovery would be an important finding for two reasons: the first feathered dinosaur from the southern continents and a bizarre display structure in a dinosaur from relatively early ancestry,” said Xie Xing, one at the Institute of Vertebrate Paleontology Paleontologist and Paleontropology in Beijing, said via email.
“Similar structures have previously been reported from some very bird-like dinosaurs, but in those cases, ribbon-like structures are attached to the tail, which is normal, but in this new discovery they are attached to the shoulder, which is unusual, “Added Joo, who was not involved in the research. He discovered some of the first feathered dinosaur fossils in China.
The animal must have been around 110 million years ago.
Some birds today have “adorned shoulders”, including the male standard bird-paradise, but they are rare, said David Martill, professor at the University of Portsmouth in Britain and a writer of the paper.
“We cannot prove that the sample is a male, but given the disparity between male and female birds, it would seem that the sample was a male, and young, too, which is surprising given the most complex performance abilities. Mature adults are reserved for men, ”she said.
“Given its flamboyance, we can imagine dinosaurs engaging in elaborate dances to show off their gigantic structures.”
The study was published in the Cretaceous Research Journal on Monday.
Paleontologists now believe that many dinosaurs had feathers, or feather-like structures, but most of the fossil evidence to date has come from China and Germany.
The fossil was discovered from limestone mined on limestone by quarry workers in the Creto Formation of northeastern Brazil and exceptionally well preserved.
It shows a section of long, thick mane running behind the animal’s back. Its arms were also covered with fur-like fibers from the hands. The mane is believed to be controlled by a muscle, allowing it to lift up, in the same way a porpine lifts its spine when a dog raises its hack or is threatened, the authors said in a news release.
The dinosaur was named Ubirjara jubatus after a name in the Tupi language meaning “lord of the spear” and the Latin meaning jubatus from Man or Crete.
Some Brazilian paleontologists have objected to unusual fossils being taken from Brazil for study. Professor Taisa Rodrigues Marques da Silva of Espirito Santo Federal University in Brazil told CNN via email that “the paper is controversial because the Brazilian constitution recognizes fossils as a cultural heritage.”
The paper stated that the fossil is part of the collection at the State Museum of Natural History Karlsruhe in Germany, and in 1995 the authority was granted permission for its export.