Synonym: Leptocleidoidea Druckenmiller and Russell 2008 [replaced name]
Full reference: H. F. Ketchum and R. B. J. Benson. 2010. Global interrelationships of Plesiosauria (Reptilia, Sauropterygia) and the pivotal role of taxon sampling in determining the outcome of phylogenetic analyses. Biological Reviews 85:361-392
Parent taxon: Plesiosauroidea according to E. Frey et al. 2017
See also Benson and Druckenmiller 2014, Ketchum and Benson 2010 and Ketchum and Benson 2011
Sister taxa: Cimoliosaurus limnophilus, Cryptoclidia, Cryptoclididae, Elasmosauridae, Euplesiosauria, Franconiasaurus, Microcleididae, Opallionectes, Plesiopharos, Plesiopterys, Plesiosauridae, Plesiosaurus, Polycotylidae, Sthenarosaurus, Westphaliasaurus
Subtaxa: Leptocleididae
Ecology: aquatic carnivore
Distribution:
• Cretaceous of Australia (6 collections), Canada (1: Alberta), Germany (1), South Africa (1), the United Kingdom (7)
• Jurassic to Cretaceous of Australia (1), the United Kingdom (1)
Total: 18 collections including 21 occurrences