New genus and species of Silesauridae named Gondwanax paracensis It was identified from fossilized remains found in southern Brazil.
Silesauridae An extinct group of Triassic reptiles related to dinosaurs.
These creatures had fairly long necks and legs and probably had a quadrupedal habit.
Most commonly, they are a group of non-dinosaur dinosaurs and are considered to be the sister group of dinosaurs.
Early silesaurids were carnivorous, and later species occupied a variety of ecological niches, with specialized herbivorous adaptations.
“Most authors agree that silesaurids are a sister group to dinosaurs, forming the clade silesauridae.” Dr. Rodrigo Temp Mullera paleontologist at the Federal University of Santa Maria.
“On the other hand, some authors suggest that silesaurids form a clade within ornithischians, nesting as a sister group to typical ornithischians.”
“A more recent hypothesis is that members of the Silesauridae were recovered as ornithischians in a paraphyletic sequence leading to typical ornithischians.”
“Irrespective of their phylogenetic status, sirsaurids inhabited Triassic landscapes for more than 30 million years,” the researchers added.
“Therefore, to investigate the succession of Triassic faunas, it is important to understand their anatomy, biology, and evolution.”
“There are several aspects of sirosaurid anatomy that are unclear or poorly studied.”
“Part of this problem is a result of the lack of more complete fossils, which are usually limited to hindlimb elements.”
The newly discovered species of Cirsaurid lived in what is now Brazil during the middle to upper Triassic period, about 237 million years ago.
named Gondwanax paracensisit represents one of the oldest dinosaurs of South America and one of the oldest silesaurids in the world.
Animal skeletons were recovered from the ruins. santa maria formation Located in Rio Grande do Sul, Brazil.
“Gondwanax paracensis “It is the oldest silesaurid with three sacral vertebrae, a feature commonly observed in more derived forms,” the paleontologist said.
“Furthermore, unlike other Triassic panbirds, this new species has an early fourth trochanter of the femur.”
“This unique combination of features indicates a high diversity of locomotor strategies in early panbirds.”
“Also, what co-occurs is Gondwanax paracensis and Gamatavus antiquus These animals, located in the same aggregation zone, represent the earliest evidence of South American silesaurid sibling. ”
“Indeed, the unique combination of sacral and hindlimb characteristics suggests different behaviors for these species, which may lead to niche differentiation within the same ecosystem.”
of study Published in the Journal on September 30, 2024 Gondwana research.
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Rodrigo Temp Muller. A new silesaurid found in South America's oldest dinomorph habitat provides insight into the early evolution of avian archosaurs. Gondwana researchpublished online on September 30, 2024. doi: 10.1016/j.gr.2024.09.007
Source: www.sci.news
