Manemergus is a genus of polycotylid plesiosaur from the Late Cretaceous (Turonian) of Morocco. Manemergus was described in 2005 and contains only one species, M. anguirostris. The type specimen was discovered close to the town of Goulmima in Morocco's High Atlas mountains phosphate pits, in the same locality as another polycotylid, Thililua, was discovered.
- Buchy, MC, Metayer, F, Frey, E, 2005. Osteology of Manemergus anguirostris n. gen. et sp., a new plesiosaur (Reptilia, Sauropterygia) from the Upper Cretaceous of Morocco. Palaeontographica Abteilung A-Palaozoologie-Stratigraphie 272 (5-6): 97-120. (Abstract)