Pectinida

Pectinida Temporal range: Middle Ordovician–Present PreꞒ Ꞓ O S D C P T J K Pg N
Aequipecten opercularis
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Subclass:	Pteriomorphia
Order:	Pectinida
Families
See text
Synonyms
Pectinoida

Pectinida is a taxonomic order of large and medium-sized saltwater clams, marine bivalve molluscs, commonly known as scallops and their allies.^[1] It is believed that they began evolutionarily in the late Middle Ordovician epoch; many species, of course, are still extant.^[2]

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.^[3]

• Superfamily: Anomioidea
  • Family: Anomiidae (jingleshells)
  • Family: Placunidae (windowpaneshells)
• Superfamily: Plicatuloidea
  • Family: Plicatulidae (kittenpaws)
• Superfamily: Dimyoidea
  • Family: Dimyidae (dimyids)
• Superfamily: Pectinoidea
  • Family: Entoliidae
  • Family: Pectinidae (scallops)
  • Family: Propeamussiidae (mud scallops)
  • Family: Spondylidae (thorny oysters)

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