Phylum Mollusca Linnaeus, 1758 - molluscs
Class Bivalvia Linnaeus, 1758 - bivalves
Subclass Heterodonta Neumayr, 1884
see Clade Heterodonta Neumayr, 1884
Order Chamida
see Order Venerida Gray, 1854
Superfamily Veneroidea Rafinesque, 1815
Family Petricolidae d'Orbigny, 1840 - rock borers
see Subfamily Petricolinae d'Orbigny, 1840
Genus Petricola Lamarck, 1801
1 Subgenus Claudiconcha Fischer, 1887
2 Subgenus Petricolirus Habe, 1951
3 Subgenus Psedoirus Millard, 1996, orth. inval.
see Subgenus Pseudoirus Habe, 1951
4 Subgenus Velargilla Iredale, 1931