TY - ART TI - Jormungandr walhallaensis : a new mosasaurine (Squamata: Mosasauroidea) from the Pierre Shale Formation (Pembina Member: Middle Campanian) of North Dakota / Bulletin of the American Museum of Natural History — Illustration, Page 47 PY - 2023 UR - https://www.biodiversitylibrary.org/page/63232103 ID - page-63232103 ER -