Paleontologists recently described the previously unknown mosasaur from fossils found near the North Dakota town of Walhalla. The town’s name comes from Valhalla, the feasting hall of Norse mythology where dead heroes gather, so the scientists dubbed the mosasaur Jormungandr walhallaensis. When the scientists examined the skull, they quickly realized they had something unusual on their hands. This combination of traits convinced the researchers that what they were looking at was a new genus and species. Here is a line drawing of the skull of the Jormungandr walhallaensis.

---

Persons: Amelia Zietlow, Richard Gilder, Jormungandr, Zietlow, “ He’s, ” Zietlow, Henry Sharpe, Takuya Konishi, Jormungandr walhallaensis, “, it’s, Konishi, walhallaensis, ” Konishi, Clint Boyd, ”, ” Mindy Weisberger Organizations: CNN, American Museum of, American Museum, Natural, Richard Gilder Graduate, North, North Dakota Geological Survey, American, of, University of Cincinnati, Scientific Locations: North Dakota, Walhalla, Valhalla, New York City, Clidastes, United States