Sirenoidei

plural noun
Si·​ren·​oi·​dei | \ ˌsīrə̇ˈnȯidēˌī\
variants: or less commonly Sirenoidea \ -​ēə \

Definition of Sirenoidei

in some classifications
: a group of lungfishes containing the genera Neoceratodus and Lepidosiren and some extinct forms from the Mesozoic

History and Etymology for Sirenoidei

New Latin, from Latin siren + New Latin -oidei, -oidea

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