Context
- Life
- Domain Eukaryota, organisms with cells containing a nucleus
Tree
- Kingdom Animalia, animals
- Phylum Porifera?, sponges
- unnamed
- Phylum Placozoa?
- Metazoa?, animals with differentiated tissues
- Phylum Cnidaria, radially symmetric with two cell layers - corals, jellyfish, anenomes, etc
- Phylum Ctenophora?, radially symmetric with two cell layers - comb jellies
- Bilateria?, bilaterally symmetric animals with three cell layers
- Protostomia?
- Phylum Platyhelminthes - flatworms
- Phylum Nemertina? - ribbon worms
- Phylum Gnathostomulida?
- Phylum Gastrotricha?
- Phylum Rotifera
- Phylum Kinorhyncha?
- Phylum Loricifera?
- Phylum Acanthocephala?
- Phylum Entoprocta?
- Phylum Nematoda? - roundworms
- Phylum Nematomorpha? - horse-hair worms
- Phylum Cycliophora?
- Phylum Mollusca - snails, squid, clams, etc
- Phylum Sipuncula? - peanut worms
- Phylum Echiura? - spoon worms
- Phylum Annelida? - segmented worms, earthworms, leeches
- Phylum Pogonophora?
- Phylum Vestimentifera?
- Phylum Tardigrada?
- Phylum Onychophora? - velvet worms
- Phylum Arthropoda - crustaceans, insects, spiders, centipedes, etc
- Phylum Phoronida?
- Phylum Ectoprocta? - bryozoans
- Phylum Brachiopoda? - lamp shells
- Deuterostomia?
- Phylum Chaetognatha?
- Phylum Echinodermata? (e.g. starfish)
- Phylum Hemichordata?
- Phylum /Chordata
- Urochordata?
- Unnamed
- Cephalochordata?
- Vertebrata?