A new species of dwarf dinosaur has been discovered in the interior of Sao Paulo

Posted on 09/18/2022 at 10:35 am

(Credit: Matheus Gadelha / Blog Collectors of Bones / Unicamp)

Sauropod dinosaurs, the so-called “necked” herbivores, are amongst the largest animals that ever lived on Earth. Some species are over 30 meters lengthy, whereas others have been recognized by scientists as dwarf dinosaurs. This is the case of Ibirania parva, a new species of sauropod from the titanosaur group, the smallest recognized and located in Ibira, inland from São Paulo. The discovery was printed this Thursday in the scientific journal Ameghiniana.

The sauropod stays had been discovered in the São José do Río Preto Formation, northwest of São Paulo, which is understood for preserving fossils of varied species, and the research concerned researchers from nationwide and worldwide universities. By evaluating the fossils of Ibirania parva with the fossils of its shut relations, they discovered that the rut had distinctive traits, significantly with regard to the construction of its vertebrae, which indicated that it belonged to an as-yet-unnamed species.

The chosen nomenclature is the confluence of Ibira with the Greek phrase “ania” that means pilgrim and the Latin phrase “parva” that means “small”. Given that Ibira comes from the Tupi phrase “ybyra”, which implies “tree”, the identify of the new species could be translated as “little pilgrim of timber”. From the materials discovered, it’s potential to estimate the dimension of the animal, which was measured as much as 5-6 meters in size.

Because there are a lot of massive species amongst titanosaurs, researchers have tried to find out whether or not it was a younger dinosaur or whether or not its diminutive dimension was attribute of the species. Analysis of fossilized tissue samples confirmed that the animal was an grownup at the time of its dying and had reached its closing dimension.

The end result confirmed that it was a pygmy titanosaur, the first dwarf species documented in the Americas, which lived at the finish of the Cretaceous interval, about 80 million years in the past. According to the researchers, Ibirania parva provides new details about the evolution and origin of dwarfism in dinosaurs. “The noticed dwarfism is related to the evolution of an endemic fauna in response to the environmental situations of the São José do Río Preto Formation characterised by extended intervals of drought,” the research mentioned.


This phenomenon signifies that though most dwarf dinosaurs are discovered in locations that correspond to prehistoric islands, the presence of the “little tree walker” could have occurred outdoors of island areas, relying on the traits of the ecological and geographical features of the predisposition to dwarfism. atmosphere.

Information from the newspaper. State of Sao Paulo.


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