Support us - check out the Invertebrate Books

Phylum index for this page:

• Previous Page: Protozoa
• Phylum Placozoa
• Phylum Porifera (Sponges)
• Phylum Mesozoa
• Phylum Cnidaria
• Phylum Ctenophora
• Phylum Platyhelminthes
• Phylum Nemertea
• Phylum Gnathostomulida
• Phylum Rotifera
• Phylum Kinorhyncha
• Phylum Nematoda
• Phylum Nematomorpha
• Phylum Acanthocephala
• Phylum Loricifera
• Next Page: Metazoa 2

Please support this site. Make a purchase from the BiologyBase online store Invertebrate Section

• Phylum Placozoa
  • Trichoplax adhaerens (monphyletic)

• Phylum Porifera (Sponges)
  • Class Calcarea
    • Subclass Calcinia
    • Subclass Calcaronia
    • Subclass Pharetronidia
  • Class Hexactinellida
    • Subclass Amphdiscophora
    • Subclass Hexasterophora
  • Class Demospongiae
    • Subclass Homoscleromopha
    • Subclass Tetractinomorpha
    • Subclass Ceractinomorpha
  • Class Sclerospongiae

• Phylum Mesozoa
  • Class Rhombozoa
  • Class Orthonectida

(Radiata)

• Phylum Cnidaria
  • Class Hydrozoa
    • Order Hydroida
    • Order Milleporina
    • Order Stylasterina
    • Order Trachylina
    • Order Actinulida
    • Order Siphonophora
    • Order Chondrophora
  • Class Cubozoa
  • Class Scyphozoa
    • Order Stauromedusae
    • Order Semaeostomeae
    • Order Rhixostomeae
  • Class Anthozoa
    • Subclass Alcyonaria
      • Order Protoalcyonaria
      • Order Stolonifera
      • Order Telestacea
      • Order Helioporacea
      • Order Alcyonacea
      • Order Gorgonacea
      • Order Pennatulacea
    • Subclass Zoantharia
      • Order Zoanthinaria
      • Order Actiniaria
      • Order Scleractinia
      • Order Ceriantipatharia
      • Order Corallimorpharia

• Phylum Ctenophora
  • Order Cydippida
  • Order Lobata
  • Order Cestida
  • Order Platyctenida
  • Order Beroida

(Acoelomata)

• Phylum Platyhelminthes
  • Class Turbellaria
    • (Archeophoran Level)
      • Order Acoela
      • Order Catenulida
      • Order Macrostomida
      • Order Polycladida
    • (Neoophoran Level)
      • Order Prolecithophora
      • Order Lecithoepitheliata
      • Order Neoghabdocoela
      • Order Preseriata
      • Order Tricladida
  • Class Trematoda
    • Subclass Aspidogastrea
    • Subclass Monogenea
    • Subclass Digenea
      • Order Strigeidida
      • Order Azygiida
      • Order Echinostomida
      • Order Plagiorchiida
      • Order Opisthorchiida
  • Class Cestoda
    • Subclass Cestodaria
    • Subclass Eucestoda
      • Order Proteocephalidea
      • Order Tetraphyllidea
      • Order Lecanicephalidea
      • Order Pseudophyllidea
      • Order Trypanothyncha
      • Order Cyclophyllidea
      • Order Aporidea
      • Order Diphyllidea
      • Order Caryophyllidea
      • Order Spathebothriidea

• Phylum Nemertea
  • Class Anopla Order Palaeonemertea
    • Order Heteronemertea
  • Class Enopla
    • Order Hoplonemertea
    • Order Bdellonemetrea

• Phylum Gnathostomulida

(Pseudocoelomata)

• Phylum Gastrotricha
  • Order Macrodasyida
  • Order Chaetonotida

• Phylum Rotifera
  • Class Seisonidea
  • Class Bdelloidea
  • Class Monogonota
    • Order Flosculariaceae
    • Order Ploima
    • Order Collothecaceae

• Phylum Kinorhyncha
  • Class Cyclorhagida
  • Class Homalorhagida

• Phylum Nematoda
  • Class Adenophorea
    • Order Enoplida
    • Order Dorylaimida
    • Order Trichocephalida
  • Class Secernentea
    • Subclass Rhabditia
      • Order Rhabditid
      • Order Strongylida
      • Order Ascaridida
    • Subclass Spiruria
    • Subclass Diplogasteria

• Phylum Nematomorpha
  • Class Gordioidea
  • Class Nectonematoidea
• Phylum Acanthocephala
  • Order Archiacanthocephala
  • Order Palaeacanthocephala
  • Order Eoacanthocephala
• Phylum Loricifera

Support our site! Please visit Ecology Designs for gifts and books.

Original content copyright 1995-2007 Robert B. Hole, Jr. All Rights Reserved