Tetralithistida

Tetralithistida includes 23 children:

• Astrocladiidae
• Astrocladiidae
• Chenendoporidae
• Chenendoporidae
• Corallistidae
• Corallistidae Sollas 1888
• Cylindrophymatidae
• Cylindrophymatidae
• Dicranocladina
• Didymmorina
• Phymaraphiniidae
• Phymaraphiniidae Schrammen 1924
• Plinthosellidae
• Plinthosellidae
• Protetraclisidae
• Protetraclisidae
• Pseudoverruculinidae
• Pseudoverruculinidae
• Siphoniidae
• Theonellidae Lendenfeld 1903
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