fossilized feces
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Ancient Parasites That Infested the Guts of Dinosaurs: Fossilized Feces Reveal the History of Parasitism
Fossilized feces preserve evidence of ancient parasites that infected an aquatic predator over 200 million years ago, according to a study published August 9, 2023, in the open-access journal PLOS ONE by Thanit Nonsrirach of Mahasarakham University, Thailand, and colleagues.
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