Fossilized vomit provides rare insight into prehistoric ecosystems

A remarkable discovery has been made in Denmark: prehistoric fossilized vomit dating back 66 million years, to the age when dinosaurs roamed the Earth. The Museum of East Zealand announced the find on Monday, crediting a local amateur fossil hunter, Peter Bennicke, for the discovery.

Unearthing prehistoric remains on UNESCO-listed cliffs

Bennicke made the find while walking along the Cliffs of Stevns, a UNESCO World Heritage Site located south of Copenhagen. Known for its rich Cretaceous-era chalk deposits, the site has yielded significant paleontological discoveries in the past.

The fossil in question was embedded in chalk and contained fragments of sea lilies, an ancient marine animal. After bringing the unusual fragments to the museum, experts confirmed that the fossil was the regurgitated remains of a predator from the late Cretaceous period.

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Uncovering relationships in ancient food chains

The vomit consists of at least two distinct species of sea lilies, which were likely consumed by a fish that regurgitated the indigestible parts. This rare find sheds light on prehistoric food chains and predator-prey relationships.

“This type of find… is considered very important when reconstructing past ecosystems because it provides important information about which animals were eaten by which,” the museum explained in a press release.

Paleontologist Jesper Milan described the discovery as “truly an unusual find,” emphasizing its significance in understanding ancient marine life.

“Sea lilies are not a particularly nutritious diet, as they consist mainly of calcareous plates held together by a few soft parts,” Milan said. “But here is an animal, probably some kind of fish, that 66 million years ago ate sea lilies that lived at the bottom of the Cretaceous sea and regurgitated the skeletal parts.”

A window into the Cretaceous world

This discovery not only deepens our understanding of prehistoric ecosystems but also highlights the scientific value of fossilized remains, no matter how unconventional they may seem. The Cliffs of Stevns continue to be a treasure trove for researchers, offering glimpses into the Earth’s ancient history.