Deadly bone disease has ruined the long -neck dinosaurs of Southeast Brazil

A combination of bones belonging to soropods, as a long -neck dinosaur, found in the municipality of Abir á in the Brazilian state of Sao Paulo, reveals that the region was suitable for bone disease that was deadly for these animals.

Researchers have found symptoms of osteoidia, bone disease that can be caused by bacteria, viruses, cookies, or protozoa, which was about 80 80 million years ago in the fossils of six people since the crets.

There is no sign of regeneration in the bones, which shows that animal death is still active with the disease, perhaps as a result. This study was published in the journal Physical records.

“There have been very few consequences about infectious diseases in Soropods, after the first recently published. The bones we analyze are very close to each other with time and similar palionological site, which suggests that a lot of research has been influenced by the first of the first, and a number of research -related studies in the region. Author, the first writer of the study and the first author of a researcher and a research university, and a research expert, and a research expert, the first author of a research and a researcher, and a researcher, Seer á

One of the lesions was limited to the marrow. The other bones, which were also found on the Waka Morta site between 2006 and 2023, have lesions that extend from the marrow to the outer part. These lesions have a sharp structure, which indicates vascularity in the region. This structure varies from other pathologists to lesions that can affect bone tissue, such as osteosaroma and bone neoplasia, two types of cancer.

There were no healing signs, when the tissues of the bone lost in the lesions were replaced by a new tissue. This symbol of regeneration is quite common in the fierce record of the bones affected by the cutting of other dinosaurs.

Researchers analyzed the bones using scanning electron microscope (SEM) and a stereomocycopy. Three unidentified explanations of osteumilitis were identified in the fossils. There were small protection, height of bones, or “collision” in a circular form in one set.

In other protection, there was a pattern like fingerprints and they were in elliptical form. Finally, in a third set, there were goals, wide numbers that were the biggest. “It can be integrated with the lesions and the skin and can be exposed, sharpens blood or purulent,” said Oriyano.

It was impossible to determine which bones were analyzed. However, it was known that there was a rib and the rest were from the lower organs of the small and giant species. It was also not possible to identify the cause of the infection.

In the study of 2021 published in Cretesis ResearchResearchers described the first case of bone infection due to blood parasites, resulting in the result of osteo myelitis. In this case, the bones were a small saver species, Ayberrania, which was found in the same place as Jovim now analyzed.

The region, known as the Sao Jose Doo Preto Formation-is surrounded by the municipality of the same name. In these environments, many dinosaurs were trapped and died, which led to the birth.

“This environment probably supported pathogens, which was transmitted by mosquitoes or by water, which was eaten by animals, including dinosaurs, turtles and today’s crocodiles,” says Orleano.

The author also states that evidence provided by the study can be useful for future experts and archaeological works as it offers different manifestations of the same disease in the bones and differentiates it from others.