†family Trinacromeridae Nopcsa 1923 (plesiosaur)
Reptilia - Plesiosauria - Trinacromeridae
Alternative spelling: Trinacromerinae
Parent taxon: Pliosauroidea according to V. G. Otschev 1976
See also Nopcsa 1928
Sister taxon: Pliosauridae
Subtaxa: none
Ecology: nektonic carnivore
Distribution: there are no occurrences of Trinacromeridae in the database