| Jormungandr Temporal range: Late Cretaceous, Campanian | |
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| Artist Illustration (Henry Sharpe) of Jormungandr walhallaensis | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Sauropsida |
| clade: | Mosasauria |
| Family: | †Mosasauridae |
| Genus: | †Jormungandr Zietlow, Boyd & van Vranken, 2023 |
| Species: | †J. walhallaensis |
| Type species | |
| †Jormungandr walhallaensis Zietlow, Boyd & van Vranken, 2023 | |
Jormungandr is an extinct genus of mosasaur described in 2024.
Description[]
Jormungandr is a small mosasaur (sharing similar features with Clidastes) named after the Norse Serpent Jörmungandr in what is now North Dakota.
Discovery[]
The holotype specimen was first discovered in 2015 in North Dakota In the Pierre Shale. It was over a multi year period between 2015 and 2018 that more remains were discovered. It was even nicknamed “Georgie”. A study at the American Museum of Natural History showed that it was somewhere between Mosasaurus and Clidastes. In 2023 it was given the genus Jormungandr walhallaensis. After a being from Norse Mythology.
Classification[]
Gallery[]
Restoration of Jormungandr by Henry Sharpe.
Another Restoration of Jormungandr.