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Plagiothyridae
Plagiothyridae
is an
extinct
family
of
fossil
sea snails
,
marine
gastropod
mollusks
in the
superfamily
Neritopsoidea
.
Genera
Genera in the family Plagiothyridae include:
Dirachis
Grabinopsis
Littorinides
Plagiothyra
, the
type genus