Topic: Biology

Paleontologists found a new dinosaur species in southern Patagonia that lived 70 million years ago. It was a fish-hunter, unlike other raptors.

This newly discovered dinosaur is called Kank australis. It's a type of raptor-like dinosaur that lived about 70 million years ago in what is now southern Patagonia. Scientists think it hunted for fish, just like modern herons do.

The discovery is based on fossil remains found in the La Anita farm near El Calafate in Santa Cruz Province, Argentina. The fossils include teeth, vertebrae, and toe bones. By comparing these fossils with those of another similar dinosaur, Neuquenraptor argentinus, scientists estimate that adult Kank australis reached a length of roughly 2.5 to 3 meters (8 to 10 feet).

The region where Kank lived was very different from modern Patagonia. It was temperate and humid with seasonal rainfall, unlike the current cold and dry conditions. The landscape was shaped by winding rivers, streams, and seasonal ponds.

Kank's fossilized bones provide clues about how it hunted. Researchers found unusual features in its neck vertebrae that served as attachment points for muscles and helped protect blood vessels. This suggests Kank may have been an active fisher, unlike common portrayals of raptors as agile terrestrial predators.

Why It Matters

This discovery helps us understand the diversity of dinosaurs on our planet. It also shows how different regions had unique environments and ecosystems.

Key Facts

• Kank australis is a new species of dinosaur discovered in southern Patagonia
• It lived about 70 million years ago and was a fish-hunter
• Adult Kank australis reached a length of roughly 2.5 to 3 meters (8 to 10 feet)
• The region where Kank lived was temperate and humid with seasonal rainfall, unlike modern Patagonia

Key Terms

Raptor

A type of dinosaur that is often depicted as a fierce predator

Implications

This discovery helps us understand the diversity of dinosaurs on our planet. It also shows how different regions had unique environments and ecosystems.