Pectinida

Pectinida is a taxonomic order of large and medium-sized saltwater clams, marine bivalve molluscs, commonly known as scallops and their allies. It is believed that they began evolutionarily in the late Middle Ordovician epoch; many species, of course, are still extant.

2010 taxonomy
In 2010 a new proposed classification system for the Bivalvia was published by Bieler, Carter & Coan, revising the classification of the Bivalvia, including the order Pectinida.


 * Superfamily: Anomioidea
 * Family: Anomiidae (jingle shells)
 * Family: Placunidae (windowpane oysters & saddle oysters)
 * Superfamily: Plicatuloidea
 * Family: Plicatulidae (kittenpaws)
 * Superfamily: Dimyoidea
 * Family: Dimyidae (dimyidarian oysters)
 * Superfamily: Pectinoidea
 * Family: Entoliidae (entoliids)
 * Family: Pectinidae (scallops)
 * Family: Propeamussiidae (propeamussiids)
 * Family: Spondylidae (thorny oysters)