Base of the evolutionary tree for Trichostomatida

← parent

• Trichostomatida (10 species)
  • Spirozonidae → (7 species)
    • Stegochilum → (6 species)
      • Stegochilum acutum
      • Stegochilum ovale
      • Stegochilum smalli
      • Stegochilum sphagnetorum
      • Stegochilum schoenborni
      • Stegochilum fusiforme
    • Spirozona caudata
  • Trichospira → (3 species)
    • Trichospira inversa
    • Trichospira dextrorsa
    • Trichospira verticillata

Other links

• Encyclopedia of Life
• Open Tree of Life

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