• Quadrella (A.P. de Candolle) J.S. Presl in Berchtold & J.S. Presl, 1825 [Family: Capparaceae, Phylum: Tracheophyta]
• Quadrella Dana, 1851 [Family: Trapeziidae, Phylum: Arthropoda]
• Quadrella Herrmannsen, 1848 (uncertain) [Family: Mollusca (awaiting allocation), Phylum: Mollusca]
• Quadrella Lhuyd & Huddesford, 1760 (unaccepted > nomen nudum) [Family: Solenidae, Phylum: Mollusca]
• Quadrella V.S. Maljavkina, 1949 † (unaccepted) [Family: , Phylum: Sporae dispersae]
• Quadrella bispinosa Borradaile, 1902 accepted as Quadrella boopsis Alcock, 1898
• Quadrella boopsis Alcock, 1898
• Quadrella brucei Serène, 1973
• Quadrella coronata Dana, 1852
• Quadrella cyrenae Ward, 1942
• Quadrella lewinsohni Galil, 1986 accepted as Quadrella serenei Galil, 1986
• Quadrella maculosa Alcock, 1898
• Quadrella nitida Smith, 1869
• Quadrella reticulata Alcock, 1898
• Quadrella rufopunctata Chen, 1933 accepted as Trapezia rufopunctata (Herbst, 1799)
• Quadrella serenei Galil, 1986