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6. Phylum of Corals?

  • Cnidaria
  • Brachiopoda
  • Mollusca
  • Hemichordata

7. Class of Belemnites?

  • Cephalopoda
  • Anthozoa
  • Crinoidea
  • Trilobita

8. Class of Echinoids?

  • Echinoida
  • Bivalvia
  • Gastropoda
  • Trilobita

9. Phylum of Trilobites?

  • Cnidaria
  • Arthropoda
  • Echinodermata
  • Mollusca

10. Phylum of Gastropods?

  • Arthropoda
  • Cnidaria
  • Mollusca
  • Echinodermata

11. Phylum of Belemnites?

  • Hemichordata
  • Arthropoda
  • Mollusca
  • Brachiopoda

12. Class of Nautiloids and Ammonoids?

  • Cephalopoda
  • Bivalvia
  • Anthozoa
  • Gastropoda

13. Phylum of Bivalves?

  • Hemichordata
  • Echinodermata
  • Mollusca
  • Brachiopoda

14. Class of Gastropods?

  • Crinoidea
  • Gastropoda
  • Bivalvia
  • Trilobita

15. Phylum of Brachiopods?

  • Brachiopoda
  • Cnidaria
  • Echinodermata
  • Arthropoda

16. Phylum of Nautiloids and Ammonoids?

  • Brachiopoda
  • Hemichordata
  • Mollusca
  • Cnidaria

17. Phylum of Crinoids?

  • Mollusca
  • Echinodermata
  • Brachiopoda
  • Cnidaria

18. Class of Graptolites?

  • Echinoida
  • Graptolithinia
  • Cephalopoda
  • Crinoidea

19. Phylum of Echinoids?

  • Arthropoda
  • Echinodermata
  • Hemichordata
  • Mollusca