Halisaurus was a mosasaur, a type of marine reptile related to lizards and snakes. It was not a dinosaur. Halisaurus lived during the Late Cretaceous, with fossils found in North America, Africa, South America and Asia.

All the Halisaurus illustrations below were collected from the internet. Enjoy and explore:

Halisaurus was described by the following scientific paper(s):
  • A. A. Shaker, N. R. Longrich, and A. Strougo, A. Asan, N. Bardet, M. K. Mousa, A. A. Tantawy, G. A. Abu El-Kheir. 2023. A new species of Halisaurus (Mosasauridae: Halisaurinae) from the lower Maastrichtian (Upper Cretaceous) of the Western Desert, Egypt. Cretaceous Research 154:105719
  • A. Noubhani and H. Cappetta. 1994. Révision des Rhombodontidae (Neoselachii, Batomorphi) des bassins à phosphate du Maroc. Palaeovertebrata 23:1-49
  • A. R. H. LeBlanc, M. W. Caldwell, and N. Bardet. 2012. A new mosasaurine from the Maastrichtian (Upper Cretaceous) phosphates of Morocco and its implications for mosasaurine systematics. Journal of Vertebrate Paleontology 32(1):82-104