“Jaws of Time Unearthed: Meet Jormungandr, the 80-Million-Year-Old Sea Serpent of North Dakota!”

A newfound marine behemoth, dubbed Jormungandr walhallaensis, has been unearthed in the Pierre Shale Formation of North Dakota, U.S. This remarkable discovery sheds light on the evolutionary lineage of Mosasaurs, marine lizards akin to modern-day monitor lizards such as the Komodo dragon. Dating back approximately 80 million years to the Late Cretaceous era, this colossal creature measured an astounding 24 feet in length, boasting a formidable shark-like tail.



The specimen, comprised of a nearly intact skull and jaws, along with essential skeletal components including cervical and anterior dorsal vertebrae, ribs, and specialized brain-supporting bones known as hypapophyseal peduncles, has unveiled a crucial missing link in the Mosasaur family tree. Scientists believe J. walhallaensis to represent a transitional form situated between the Clidastes and Plotosaurini groups.

Drawing inspiration from Norse mythology, Jormungandr was named after the world-serpent, a progeny of Loki, according to ancient tales. Odin cast this magnificent serpent into the oceans surrounding Midgard (Earth), where it grew to such immense proportions that it encircled the entire world, gripping its own tail. Prophecies foretell that when Jormungandr eventually releases its tail, it will incite a cataclysmic battle with the mighty Thor, culminating in Ragnarok – the fabled apocalypse.

Decades after the ill-fated endeavor of John Hammond’s dinosaur-themed park, Jurassic World emerged as a triumph, captivating audiences worldwide. While not strictly a dinosaur, the park’s star attraction was the Mosasaurus exhibit, showcasing the gargantuan aquatic reptile in a colossal 3-million-gallon enclosure known as the Jurassic World Lagoon. Here, enthralled visitors could witness the creature’s voracious appetite for Great White sharks, before descending underground for an awe-inspiring subaquatic viewing experience.


Although Mosasaurs have been subjects of scientific inquiry for over two centuries, the discovery of Jormungandr walhallaensis underscores the enduring allure of these enigmatic creatures. Bearing resemblance to a colossal aquatic Komodo dragon endowed with powerful fins, this astonishing find heralds a groundbreaking milestone in paleontology. With a bite strength rivaling that of a Tyrannosaurus rex, Jormungandr truly lives up to its moniker as the world serpent.


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