(Lyonsiella) (Lyonsiella) is a biological genus in the family Verticordiidae and order Pholadomyoida.
Lyonsiella abyssicola
Lyonsiella alaskana
Lyonsiella cordata
Lyonsiella fragilis
Lyonsiella gemma
Lyonsiella quaylei
Lyonsiella subquadrata
Lyonsiella uschakovi
Euciroa
Halicardia
Haliris
Laevicordia
Lyonsiella
Policordia
Trigonulina
Verticordia