Cardioidea is a superfamily of mussels. There are 366 species of Cardioidea, in 56 genera and 2 families. This superfamily has been around since the katian age. It includes groups like Pterocardiidae and Cockles. Dead Cardioidea form shallow marine sediments. They have sexual reproduction. They are facultatively mobile animals.
EOL has data for 13 attributes, including: