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Joaquinraptor Discovery Sheds Light on Ancient Predation

9/23/2025

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Summary

Story summary

In 2019, researchers discovered Joaquinraptor, a 70-million-year-old megaraptor from Patagonia, Argentina.
A crocodile bone lodged in its jaws suggests predation or scavenging.
The find makes Joaquinraptor one of the most complete megaraptor specimens, aiding understanding.
The study, in Nature Communications, seeks to place megaraptors in the theropod tree and compare Joaquinraptor with other dinosaurs.

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Story summary

In 2019, researchers discovered Joaquinraptor, a 70-million-year-old megaraptor from Patagonia, Argentina.
A crocodile bone lodged in its jaws suggests predation or scavenging.
The find makes Joaquinraptor one of the most complete megaraptor specimens, aiding understanding.
The study, in Nature Communications, seeks to place megaraptors in the theropod tree and compare Joaquinraptor with other dinosaurs.