Superfamily
Pectinoidea (Pectinoid clams)
Crassadoma gigantea. Photo: (c) Chloe and Trevor Van Loon, some rights reserved (CC BY)
The Pectinoidea are a superfamily of marine bivalve molluscs, including the scallops and thorny oysters (despite the common name, the latter are not true oysters).
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