Spanionematidae Explained

Spanionematidae is an extinct family of fossil sea snails, marine gastropod molluscs in the clade Caenogastropoda.^[1]

References

• The Taxonomicon

Notes and References

1. Bouchet, P. . Rocroi, J.-P. . amp . 2005 . Classification and Nomenclator of Gastropod Families . Malacologia . 47 . 1–2 .