What is the order of bivalves?

Bivalves, a class of mollusks, are primarily categorized into several orders, with the most notable being Pectenida (scallops), Ostreoida (oysters), and Veneroida (clams and cockles). Other important orders include Mytiloida (mussels) and Cardiida (cockles). Bivalves are characterized by their two-part hinged shells and are primarily filter feeders, playing a crucial role in aquatic ecosystems. Their diversity allows them to inhabit a wide range of environments, from freshwater to marine ecosystems.