Giant Fossil Reveals New Herbivorous Dinosaur in Argentina — 95-Million-Year-Old Species Has Unique Features

Written by Fabio Lucas Carvalho

Published on 31/07/2025 at 11:19

Updated on 31/07/2025 at 11:22

Foto: Reprodução

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A giant fossil discovered in Patagonia revealed a new species of herbivorous dinosaur. At 95 million years old, the animal draws attention for its size and unique anatomical characteristics that help to better understand the history of sauropods.

A new herbivorous dinosaur was discovered in Patagonia Argentina. Named Astigmasaura genuflexa, the animal lived about 95 million years ago, during the Late Cretaceous period. Measuring approximately 18 meters in length and weighing over 10 tons, it was part of the family Rebbachisauridae, a group of sauropods from the superfamily Diplodocoidea.

Fossil Found in El Orejano

The fossils were found in the locality of El Orejano, situated in the Huincul Formation, within the Neuquén Basin.

Paleontologists analyzed a part of the well-preserved posterior skeleton of an adult individual.

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Distinct Anatomical Characteristics

Most importantly, Astigmasaura genuflexa exhibits unique features. Among them are high neural spines on the tail vertebrae, asymmetrical hemal arches, and laterally flattened tibias.

Additionally, the animal’s femur has a specific shape, with inclined distal condyles.

These characteristics set it apart from other previously described sauropods. Therefore, the study suggests that the diversity of Rebbachisauridae was greater than previously thought.

Diversity in Ancient Gondwana

According to specialists, the Rebbachisaurids lived between the Early and Late Cretaceous. Their fossils have been found in Northern Africa and South America, regions that were part of the ancient supercontinent Gondwana. Patagonia, in turn, has produced more than half of all known specimens of this family.

The complete article was published in the journal Cretaceous Research and reinforces the scientific relevance of the region.

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Giant Fossil Reveals New Herbivorous Dinosaur in Argentina — 95-Million-Year-Old Species Has Unique Features

A giant fossil discovered in Patagonia revealed a new species of herbivorous dinosaur. At 95 million years old, the animal draws attention for its size and unique anatomical characteristics that help to better understand the history of sauropods.

Fossil Found in El Orejano

Distinct Anatomical Characteristics

Diversity in Ancient Gondwana

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Giant Fossil Reveals New Herbivorous Dinosaur in Argentina — 95-Million-Year-Old Species Has Unique Features

A giant fossil discovered in Patagonia revealed a new species of herbivorous dinosaur. At 95 million years old, the animal draws attention for its size and unique anatomical characteristics that help to better understand the history of sauropods.

Fossil Found in El Orejano

Distinct Anatomical Characteristics

Diversity in Ancient Gondwana

A giant printer called the “Ferrari” of concrete has landed in Latin America and can already build a 120-square-meter house in just 48 hours, making the traditional construction site look like something from the last century.

Brazil will harvest a record crop of up to 357 million tons of grains, but it does not have the capacity to store a large part of it. The storage deficit has reached the highest level in history and is equivalent to almost the entire production of Argentina.

Four times faster than the Concorde, capable of taking passengers from New York to London in less than an hour at Mach 5.5, and with an engine that switches from turbojet to ramjet mid-flight at Mach 3.5, the Hermeus Quarterhorse went from paper to its first flight in just 19 months.

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