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Scientists unearth a 20 meter dinosaur in Argentina rewriting Jurassic migration and evolution
International
Published on 13 May 2026
Its bones hint at a surprising sauropod connection
Researchers in Argentina have uncovered a major sauropod fossil, Bicharracosaurus dionidei, dating back about 155 million years. At roughly 20 meters long, its distinctive bone structure suggests a biological link between South American and North American sauropods, offering fresh evidence for how these giants spread and evolved across the ancient southern supercontinent.
- A new fossil species, Bicharracosaurus dionidei, was found in Argentina
- Researchers estimate the dinosaur was around 20 meters long
- Bone features point to ties between South and North American sauropods
- The find reshapes understanding of sauropod evolution and dispersal
Read the full story at The Economic Times
This summarization was done by Beige for a story published on 
The Economic Times