A 290-million-year-old fossilized vomit has been identified, marking a significant find in understanding ancient land-based ecosystems and predator-prey relationships. The discovery, made at a site in Germany, offers a rare glimpse into the diet and feeding habits of creatures from the late Paleozoic era.

This fossilized vomit, scientifically known as regurgitalite, is believed to be the oldest such specimen found in a fully terrestrial environment. Researchers suggest it originated from a large predator, possibly an early relative of the Dimetrodon, an animal known for its sail-like back. The finding contributes valuable data to paleontological studies, helping to piece together the complex food webs of prehistoric life.

Discovery and Identification
The fossil was found at the Bromacker excavation site in Germany. It was identified and described in a study published in the journal Scientific Reports.
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What is regurgitalite? It is the scientific term for fossilized vomit.
Significance: This is reported as the earliest known example of fossilized vomit from a land-based ecosystem.
Suspected Origin: Evidence points to a large predator, potentially an ancestor of the Dimetrodon.
Broader Implications for Paleontology
Fossil discoveries, even those as unusual as regurgitalite, provide critical data for understanding ancient life. This particular find is valuable because it offers direct evidence of feeding behavior.

Dietary Insights: The vomit can reveal what the predator consumed, offering clues about the species it hunted.
Ecosystem Dynamics: Understanding predator-prey relationships is key to reconstructing ancient food chains and the overall health of ecosystems.
Land vs. Sea: Identifying this on land is important, as other fossilized vomit examples have been found in marine environments, such as a 66-million-year-old specimen found in Denmark which contained evidence of sea lilies.
Context of Ancient Life
The Bromacker site is known for its well-preserved fossils from the late Paleozoic era. This period saw significant evolutionary developments, including the transition of life from water to land.
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Age of the Fossil: Approximately 290 million years old.
Location: Bromacker excavation site, Germany.
Environment: Fully land-based ecosystem.
Potential Predator: Early relative of Dimetrodon.
This finding adds another layer to our understanding of the creatures that inhabited Earth during this crucial evolutionary period.
Sources:
National Post: "Researcher from university in Manitoba helps identify 290-million-year-old fossilized vomit in new study" - https://nationalpost.com/news/canada/manitoba-researcher-fossilized-vomit-study
USA Today: "66-million-year-old fossil of vomit discovered: See what researchers found" - https://www.usatoday.com/story/news/world/2025/01/28/fossilized-vomit-denmark/77998276007/