Key to colors: DOMAIN, KINGDOM,Phylum,Subphylum,Class,Subclass,Order,Family
Links can be any color, but all links are underlined.
ROOT (OVERVIEW) > EUKARYOTA > Opisthokonta > METAZOA > Eumetazoa > Bilateria >
Protostomia (Ch. 28)
- Spiralia
- Gastrotricha - Gastrotrichs
- Polyzoa
- Entoprocta - Entoprocts
- Bryozoa - Bryozoans
- Cycliophora - Symbion pandora
- Gnathifera
- Rotifera - Rotifers
- Micrognathozoa - Limnognathia maerski
- Brachiozoa
- Brachiopoda - Lampshells
- Rhynchonelliformea
- Rhynchonellata
- Terebratulida
- Spiriferinida
- Trochozoa
- Nemertea - Ribbon Worms
- Eutrochozoa
- Schizocoela
- Mollusca (28-V) - Molluscs
- Aplacophora - Solenogasters
- Monoplacophora
- Polyplacophora - Chitons
- Scaphopoda - Tusk Shells
- Bivalvia - Bivalves
- Protobranchia - Nutclams, Yolidas, Awningclams
- Eubivalvia
- Autobranchia
- Heteroconchia - Shipworms, Surf Clams, Wedge Shells, Razor Clams
- Palaeoheterodonta - Sandshells, Pigtoes, Hickorynuts
- Heterodonta
- Anomalodesmata - Sandy Pandora, Cardiomya
- Uniomorphi
- Cardiomorphi
- Pteriomorphia
- Pterioida - Pearl Oysters, Flat Tree-Oyster
- Mytilomorphi
- Mytilida (Mytiloida) - Mussels
- Ostreomorphi
- Arcioni
- Arcida (Arcoida) - Ark Shells
- Ostreioni
- Ostreata
- Ostreiformii
- Ostreida (Ostreoida) - Oysters
- Ostreidina
- Ostreoidea
- Gryphaeidae
- Gryphaea - Field
- Rhynchostreon - Field
- Pectinida (Pectinoida) - Scallops
- Spondylidae
- Pectinidina
- Anomiidina
- Monotoidei
- Limoidei (Limoida) - Spiny Fileclams
- Gastropoda - Gastropods
- ? - Pleurotostoma - Field
- Neritimorpha - Nerites
- Eogastropoda
- Patellogastropoda - Limpets
- Hypsogastropoda - Conchs, Whelks, Cone Shells
- Sorbeoconcha - Horn Shells, Turret Shells
- Orthogastropoda
- Cocculiniformia
- Heterobranchia - Land Snails, Sea Hares, etc.
- Vetigastropoda - Abalones, Top Shells, Turban Shells
- Prosobranchia
- Caenogastropoda
- Architaenioglossa - Mysterysnails
- Neogastropoda
- Cephalopoda - Cephalopods
- Coleoidea
- Decapodiformes - Squids, Cuttlefishes
- Octopodiformes - Octopuses, Vampire Squids
- Nautiloidea - Nautiluses
- Ammonoidea
- Ancyloceratina
- Ammonitida
- Ammonitina
- Psiloceratoidea
- Arietitidae
- Coroniceras (Arietites) - Field
- Eoderoceratoidea
- Hoplitaceae
- Acanthocerataceae
- Lytoceratina
- Endoceratoidea
- Belemnitida
- Ecdysozoa (28-VI)
- Cycloneuralia
- Nematoidea
- Nematoda - Roundworms
- Nematomorpha - Horsehair Worms
- Scalidophora
- Panarthropoda (28-VII)
The classification system used on this page is based on the site of the Paleobiology Database.