Pachyodon agrestis T. Brown, 1843 † accepted as Carbonicola acuta (J. Sowerby, 1813) † (original description)
Pachyodon aldamii T. Brown, 1843 † accepted as Carbonicola aldamii (T. Brown, 1843) † (original description)
Pachyodon amygdala T. Brown, 1843 † (original description)
Pachyodon antiquus T. Brown, 1843 † accepted as Carbonicola senex (T. Brown, 1849) † (original description)
Pachyodon bipennis T. Brown, 1843 † accepted as Carbonicola bipennis (T. Brown, 1843) † (original description)
Pachyodon blaydsii T. Brown, 1843 † (original description)
Pachyodon dawsoni T. Brown, 1843 † accepted as Anthracosphaerium dawsoni (T. Brown, 1843) † (original description)
Pachyodon dubius T. Brown, 1843 † (original description)
Pachyodon embletoni T. Brown, 1843 † accepted as Carbonicola embletoni (T. Brown, 1843) † (original description)
Pachyodon exoletus T. Brown, 1843 † accepted as Carbonicola acuta (J. Sowerby, 1813) † (original description)
Pachyodon gerardi T. Brown, 1843 † (original description)
Pachyodon hamatus T. Brown, 1843 † (original description)
Pachyodon heyii T. Brown, 1843 † (original description)
Pachyodon lateralis T. Brown, 1843 † accepted as Anthracosia lateralis (T. Brown, 1843) † (original description)
Pachyodon levedensis T. Brown, 1843 † accepted as Carbonicola acuta (J. Sowerby, 1813) † (original description)
Pachyodon nanus T. Brown, 1843 † accepted as Carbonicola similis (T. Brown, 1843) † (original description)
Pachyodon nucleus T. Brown, 1843 † (original description)
Pachyodon pyramidatus T. Brown, 1843 † accepted as Carbonicola pyramidata (T. Brown, 1843) † (original description)
Pachyodon rhindii T. Brown, 1843 † accepted as Carbonicola rhindii (T. Brown, 1843) † (original description)
Pachyodon rugosus T. Brown, 1843 † accepted as Carbonicola rugosa (T. Brown, 1843) † (original description)
Pachyodon similis T. Brown, 1843 † accepted as Carbonicola similis (T. Brown, 1843) † (original description)
Pachyodon smithii T. Brown, 1843 † (original description)
Pachyodon subrotundus T. Brown, 1843 † (original description)
Pachyodon subtriangularis T. Brown, 1843 † accepted as Carbonicola subtriangularis (T. Brown, 1843) † (original description)
Pachyodon sulcatus T. Brown, 1843 † accepted as Carbonicola aquilina (J. De C. Sowerby, 1840) † (original description)
Pachyodon transversus T. Brown, 1843 † accepted as Carbonicola acuta (J. Sowerby, 1813) † (original description)
Pachyodon turgidus T. Brown, 1843 † accepted as Anthracosphaerium turgidum (T. Brown, 1843) † (original description)
Pachyodon vetustus T. Brown, 1843 † accepted as Margaritana distorta (W. Bean, 1836) † accepted as Margaritifera distorta (W. Bean, 1836) † (original description)

Great Britain for Pachyodon agrestis T. Brown, 1843 † 
Great Britain for Pachyodon aldamii T. Brown, 1843 † 
Great Britain for Pachyodon amygdala T. Brown, 1843 † 
Great Britain for Pachyodon antiquus T. Brown, 1843 † 
Great Britain for Pachyodon bipennis T. Brown, 1843 † 
Great Britain for Pachyodon blaydsii T. Brown, 1843 † 
Great Britain for Pachyodon dawsoni T. Brown, 1843 † 
Great Britain for Pachyodon dubius T. Brown, 1843 † 
Great Britain for Pachyodon embletoni T. Brown, 1843 † 
Great Britain for Pachyodon exoletus T. Brown, 1843 † 
Great Britain for Pachyodon gerardi T. Brown, 1843 † 
Great Britain for Pachyodon hamatus T. Brown, 1843 † 
Great Britain for Pachyodon heyii T. Brown, 1843 † 
Great Britain for Pachyodon lateralis T. Brown, 1843 † 
Great Britain for Pachyodon levedensis T. Brown, 1843 † 
Great Britain for Pachyodon nanus T. Brown, 1843 † 
Great Britain for Pachyodon nucleus T. Brown, 1843 † 
Great Britain for Pachyodon pyramidatus T. Brown, 1843 † 
Great Britain for Pachyodon rhindii T. Brown, 1843 † 
Great Britain for Pachyodon rugosus T. Brown, 1843 † 
Great Britain for Pachyodon similis T. Brown, 1843 † 
Great Britain for Pachyodon smithii T. Brown, 1843 † 
Great Britain for Pachyodon subrotundus T. Brown, 1843 † 
Great Britain for Pachyodon subtriangularis T. Brown, 1843 † 
Great Britain for Pachyodon sulcatus T. Brown, 1843 † 
Great Britain for Pachyodon transversus T. Brown, 1843 † 
Great Britain for Pachyodon turgidus T. Brown, 1843 † 
Great Britain for Pachyodon vetustus T. Brown, 1843 †