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
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