Key to colors: DOMAIN, KINGDOM,Phylum,Subphylum,Class,Subclass,Order,Family
Links can be any color, but all links are underlined.

ROOT > EUKARYOTA > Fungi/Metazoa Group > METAZOA > Eumetazoa > Bilateria > Protostomia > Mollusca >

Bivalvia

• Autobranchia
  • Heteroconchia
    • Archiheterodonta
      • Carditida
    • Euheterodonta
      • Anomalodesmata (5 Superfamilies)
      • Imparidentia
        • Adapedonta
        • Galeommatida
        • Gastrochaenida
        • Lucinida
        • Neoheterodontei
          • Cardiida
          • Myida - Shipworms
          • Venerida - Surf Clams, Wedge Shells, Razor Clams
    • Palaeoheterodonta
      • Trigoniida
      • Unionida - Sandshells, Pigtoes, Hickorynuts
  • Pteriomorphia
    • Arcoida - Ark Shells
    • Limoida - Spiny Fileclam
    • Mytilida - Mussels
    • Ostreida - Oysters
    • Pectinida - Scallops
    • Pteriida - Pearl Oysters, Flat Tree-Oyster
• Protobranchia
  • Nuculanida
  • Nuculida - Nutclams, Yolidas
  • Solemyida - Awningclams