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Temporal range: Middle Ordovician–Present
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Pteriomorphia
Order: Pectinida

See text



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 era; many species, of course, are still extant.[2]

2010 taxonomy[edit]

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]


  1. ^ Pectinoida Gray, 1854. Retrieved through: World Register of Marine Species on 9 July 2010.
  2. ^ Matsumoto, M. (2003). "Phylogenetic analysis of the subclass Pteriomorphia (Bivalvia) from mtDNA COI sequences". Molecular Phylogenetics and Evolution. 27 (3): 429. doi:10.1016/S1055-7903(03)00013-7.
  3. ^ Bieler, R., Carter, J.G. & Coan, E.V. (2010) Classification of Bivalve families. Pp. 113-133, in: Bouchet, P. & Rocroi, J.P. (2010), Nomenclator of Bivalve Families. Malacologia 52(2): 1-184