US EditionNew Megaraptoran Joaquinraptor Named in Patagonia, Found with Croc Bone Between Its Jaws
- On September 23, 2025, scientists in Argentina announced the identification of a previously unknown megaraptoran dinosaur, which they have called Joaquinraptor casali.
- A partial skeleton discovered in the Lago Colhué Huapi Formation dates back to approximately 66 to 70 million years ago, near the end of this dinosaur species' existence.
- The skeletal remains include parts of the skull, ribs, legs, tail, and a crocodyliform limb bone that may reveal the dinosaur's diet and ecological role.
- Paleontologist Matt Lamanna said the dinosaur could have reached 23 feet in length and weighed about a ton, with some specimens estimated to be at least 19 years old at death.
- This discovery fills a significant fossil record gap and sheds light on the megaraptoran group’s role as large-clawed carnivores in prehistoric ecosystems.
176 Articles
176 Articles
A research team found the bones of a previously unknown predatory dinosaur in South America: the Joaquinraptor. This distant relative of the T-Rex was once one of the most important hunters of his time. By Veronika Simon.
Megaraptor had giant claws and an appetite for crocodilians - Hawaii Tribune-Herald
In 2019, a team of researchers uncovered a 70-million-year-old dinosaur in a Patagonian province of Argentina. The dinosaur, a hunter, was a 23-foot-tall predator whose long, powerful arms were tipped with massive claws. And it came with an unexpected bonus.
New 'apex predator' dinosaur species discovered with crocodile bones still in its mouth
A new species of "apex predator" dinosaur has been uncovered after palaeontologists recovered a fossil which showed the bones of a crocodile lodged in its jaws. Researchers have said the discovery in Argentina revealed the existence of a 70-million-year-old species of top predator which weighed more than a tonne - and was seven metres long. The species has been described as belonging to the "megaraptor" family of dinosaurs and has been dubbed Jo…
New Dinosaur Discovered in Argentina with Crocodile Bone in Its Jaw
Scientists announced Tuesday the discovery of a new dinosaur in Patagonia, Argentina, with a crocodile bone in its jaw. Credit: Kabacchi – CC BY 2.0 via Flickr. Scientists announced Tuesday the discovery of a new dinosaur in Patagonia, Argentina, with a crocodile bone in the jaw of its skeleton. The discovery is labelled as one of the most complete specimens yet found of the enigmatic megaraptoran group, whose fossil was recovered with the forel…
Newly Discovered Megaraptor Still Had an Ancient Crocodile in Its Mouth
Scientists in Patagonia just revealed their research on the Joaquinraptor Casali, a newly discovered megaraptor with Freddy Kruger-style knife hands that apparently died with chunks of crocodile in its mouth. This thing was not the size of the velociraptors you’re imagining from Jurassic Park. It was 23 feet long. And it was an apex predator with oversized, knife-like hands that had no natural rivals because, at the time, South America didn’t ha…
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