Paleontologists in Argentina have made an exciting discovery: a new species of dinosaur called Kank australis. This dinosaur lived about 70 million years ago during the Late Cretaceous period. It thrived in a rich environment of rivers, seasonal ponds, and lush plant life, including water lilies, fish, insects, and various mollusks.
Measuring around 2.5 to 3 meters long (about 8.2 to 9.8 feet), Kank australis belongs to a group of bird-like dinosaurs known as Unenlagiidae. This group is related to the famous Velociraptor. Dr. Matías Motta, a researcher from the Bernardino Rivadavia Natural Sciences Museum, emphasizes that the Unenlagiidae family’s evolutionary history in South America is still not fully understood.
This discovery connects known dinosaur records from northern Patagonia and Antarctica, showing that Kank australis had a broader distribution than previously realized. Fossils, including teeth and bones, were found at the Chorrillo Formation in Patagonia. Excavations there began in 2018, leading to the discovery of various fossilized species.
Initially, fossil fragments from Kank australis were too incomplete for identification. However, a key vertebra found in 2024 confirmed its status as a new species. The fossils reveal insights into how this dinosaur lived. The unique structure of its cervical vertebrae suggests it could have had flexible neck movements, similar to modern herons, indicating an active lifestyle as a fisher.
Interestingly, Kank australis had features adapted for catching fish, like an elongated snout and sharp teeth. Alongside its remains, fish fossils were discovered, supporting the idea that it primarily fed on aquatic creatures. It likely also preyed on other animals in its ecosystem, such as frogs, lizards, and even early mammals related to today’s echidnas.
While Kank australis was smaller and more slender than other carnivorous dinosaurs of its time, it coexisted with larger predators like Maip macrothorax, a massive megaraptorid reaching over 10 meters in length. This indicates a complex ecosystem where various species played different roles.
The findings about Kank australis were published in the Journal of Vertebrate Paleontology, shedding light on the diversity of life during a time long before humans walked the Earth. This discovery helps us better understand how some dinosaurs adapted to their environments and went after their prey.
For more insights about paleontological discoveries, you can explore the Journal of Vertebrate Paleontology.
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Argentina,Chorrillo Formation,Cretaceous,Diet,Dinosaur,Fish,Fossil,Kank,Kank australis,Patagonia,Piscivory,South America,Unenlagiidae
