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Lamellirostres

plural noun
La·​mel·​li·​ros·​tres

Definition of Lamellirostres 

in some classifications

: a group of birds including the ducks, geese, swans, mergansers, and usually the flamingos and having tranverse ridges like teeth just inside the edges of the bill — compare anseres

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History and Etymology for Lamellirostres

New Latin, from lamell- + -rostres (from Latin rostrum beak)

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