Story perspectives

Ancient Fossilized Vomit Reveals Predators' Varied Diets

2/22/2026

Summary

Story summary

A 290-million-year-old fossilized vomit, or regurgitalite, at Germany's Bromacker site contains 41 bone fragments from three reptile species.
Researchers found evidence of varied diets among predators, including Dimetrodon teutonis and Tambacarnifex unguifalcatus.
Researchers used advanced micro-CT scanning to analyze the fossil without damage, confirming the bones were expelled before digestion.
The finding enhances understanding of predator-prey relationships and feeding behaviors in ancient ecosystems.

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Story summary

A 290-million-year-old fossilized vomit, or regurgitalite, at Germany's Bromacker site contains 41 bone fragments from three reptile species.
Researchers found evidence of varied diets among predators, including Dimetrodon teutonis and Tambacarnifex unguifalcatus.
Researchers used advanced micro-CT scanning to analyze the fossil without damage, confirming the bones were expelled before digestion.
The finding enhances understanding of predator-prey relationships and feeding behaviors in ancient ecosystems.