Plesiosaurus dolichodeirus Conybeare, 1824 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Chordata family Plesiosauridae genus Plesiosaurus species Plesiosaurus dolichodeirus Name Synonyms Plesiosaurus homei Gray, 1831 Plesiosaurus macromus Owen, 1840 Homonyms Plesiosaurus dolichodeirus Conybeare, 1824