Archinacelloidea

Phylum:Mollusca

Class:Monoplacophora

Order:†Archinacelloidea
Knight, 1952

Archinacelloidea Temporal range: Middle Ordovician–Late Ordovician PreꞒ Ꞓ O S D C P T J K Pg N
drawing of Archinacella instabilis from family Archinacellidae
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Monoplacophora
Order:	†Archinacelloidea Knight, 1952

Archinacelloidea is an extinct superfamily of paleozoic molluscs of uncertain position (Gastropoda or Monoplacophora).^[1][2]