| Pectinida Temporal range:
| |
|---|---|
| |
| 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. 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)