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Ancient Crocodilian Eggshells Discovered, Dating Back 55 Million Years

11/12/2025

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Summary

Story summary

Scientists in Queensland, Australia, have identified the oldest known crocodilian eggshells, dating to 55 million years ago.
Found in Murgon, the eggshells likely belong to extinct mekosuchines and indicate tree-climbing to ambush prey.
The study was led by Professor Michael Archer and involved international collaboration.
Although collected decades ago, the eggshells were analyzed only recently, advancing knowledge of Australia’s prehistoric crocodiles.

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Story summary

Scientists in Queensland, Australia, have identified the oldest known crocodilian eggshells, dating to 55 million years ago.
Found in Murgon, the eggshells likely belong to extinct mekosuchines and indicate tree-climbing to ambush prey.
The study was led by Professor Michael Archer and involved international collaboration.
Although collected decades ago, the eggshells were analyzed only recently, advancing knowledge of Australia’s prehistoric crocodiles.