Ostreoidea | |
---|---|
Pacific oyster, Magallana gigas | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Bivalvia |
Subclass: | Pteriomorphia |
Order: | Ostreida |
Superfamily: | Ostreoidea Rafinesque, 1815 |
Families | |
Ostreoidea is a taxonomic superfamily of bivalve marine mollusc, sometimes simply identified as oysters,[1] containing two families. The ostreoids are characterized in part by the presence of a well developed axial rod.[2] Anal flaps are known to exist within the family Ostreidae but not within the more-primitive Gryphaeidae.[3] The scar from the adductor muscle is simple, with a single, central scar.[4] In the majority, the right valve is less convex than the left.[5]