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Scientists have recently unearthed remnants of a formidable ancient predator lurking beneath Greenland’s icy terrain.
Meet Timorebestia koprii (translated to ‘terror beasts’ in Latin), an enigmatic creature that once ruled the Early Cambrian seas over 518 million years ago.
(Photo : Photo Mario Tama/Getty Images)
UPERNAVIK, GREENLAND – SEPTEMBER 07: Icebergs are seen from NASA’s Oceans Melting Greenland (OMG) research aircraft on September 7, 2021 near Upernavik, Greenland.
Giant Worm from the Ancient Seas
Discovered in the Sirius Passet fossil locality in North Greenland, Timorebestia koprii represents a previously unknown group of fearsome ocean predators (via a report shared by Phys.org).
These remarkable findings, detailed in a recent study researchers from the University of Bristol, shed light on a forgotten dynasty of predators that had long evaded scientific recognition.
The discovered fossils show a creature with impressive proportions, measuring more than 30 centimeters in length.
Timorebestia was a formidable force in the ancient seas, with distinctive fins along its body, a peculiar head with elongated antennae, and hard jaw structures.
Ancient Sea Predator
Dr. Jakob Vinther from the University of Bristol described the significance of this discovery, stating, “We have previously known primitive arthropods as dominant predators during the Cambrian, such as the anomalocaridids. However, Timorebestia, a distant yet close relative of modern arrow worms or chaetognaths, unveils a new chapter in the ocean’s predatory history.”
Timorebestia’s role as a colossal predator of its time places it on par with the significance of today’s apex predators, akin to the role of sharks and seals in modern oceans during the Cambrian period.
The excavation of Timorebestia’s digestive system revealed remnants of Isoxys, a prevalent swimming arthropod from the same era. Morten Lunde Nielsen, a former Ph.D. student at Bristol and part of the study, highlighted the significance of this finding, stating, “They are very common at Sirius Passet and had long protective spines, pointing both forwards and backwards. However, they clearly didn’t completely succeed in avoiding that fate, because Timorebestia munched on them in great quantities.”
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Ancient Marine Ecosystems
The discovery showcases Timorebestia’s predatory nature and establishes a crucial link between ancient marine ecosystems and the evolutionary relationships between different species.
Luke Parry from Oxford University, involved in the study, emphasized, “Timorebestia is a really significant find for understanding where these jawed predators came from. Today, arrow worms have menacing bristles on the outside of their heads for catching prey, whereas Timorebestia has jaws inside its head.”
Furthermore, this finding strengthens the connection between Timorebestia and another ancient creature called Amiskwia sagittiformis, firmly situating them within the chaetognath group.
The exceptional preservation in Sirius Passet allowed researchers to unravel intricate anatomical details, unveiling the creature’s digestive system, muscle anatomy, and even nervous systems.
Dr. Tae Yoon Park from the Korean Polar Research Institute expressed excitement about these discoveries and hinted at more revelations to come from ongoing expeditions in Greenland’s remote reaches.
Stay posted here at Tech Times.
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