Jormungandr walhallaensis
| Jormungandr Temporal range: Late Cretaceous (Campanian), | |
|---|---|
| Life restoration of Jormungandr | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Clade: | †Mosasauria |
| Family: | †Mosasauridae |
| Subfamily: | †Mosasaurinae |
| Genus: | †Jormungandr |
| Species: | †J. walhallaensis |
| Binomial name | |
| †Jormungandr walhallaensis Zietlow, Boyd & van Vranken 2023 | |
Jormungandr is an extinct genus of mosasaurid squamates from the early Campanian Pierre Shale of North Dakota, United States. The genus contains a single species, J. walhallaensis, known from a nearly-complete skull and partial skeleton. Jormungandr was a medium-sized mosasaur, at around 6–8 metres (20–26 ft) long, and its skeletal anatomy exhibits a mix of features seen in both basal and derived mosasaurines.