• Brachiopoda [phylum] - brachiopoder/armfødder
  • Rhynchonellata [klasse]
    • Rhynchonellida [orden]
      • Rhynchonellidae [familie]
        • Cretirhynchia retracta
          Cretirhynchia retracta
    • Thecideida [orden]
      • Thecideidae [familie]
        • Thecidea papillata
    • Terebratulida [orden]
      • Terebratellidae [familie]
        • Magas chitoniformis
      • Terebratulidae [familie]
        • Carneithyris subcardinalis
          Carneithyris subcardinalis
        • Neoliothyrina obesa
      • Cancellothyrididae [familie]
        • Terebratulina gracilis
        • Terebratulina subtilis