mˈɛtɹɪɹhˌɪntʃɪdˌiː ɪz ɐ nˈoʊdbˈeɪst tˈæksən dᵻfˈaɪnd ɪn tˈuː θˈaʊzənd nˈaɪn æz ðə lˈiːst ɪŋklˈuːsɪv klˈeɪd kənsˈɪstɪŋ ʌv mˈɛtɹɪɹhˌɪntʃəs dʒˈɛfɹɔɪˌɪaɪ ænd dʒˌiːoʊsˈɔːɹəs dʒaɪɡˈæntɪəs.
Metriorhynchidae is a node-based taxon defined in 2009 as the least inclusive clade consisting of Metriorhynchus geoffroyii and Geosaurus giganteus.