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      - Myriapoda (2)
    - Trilobitomorpha
      - Trilobita (2)
  - Brachiopoda (3)
  - Cnidaria
    - Anthozoa (2)
  - Echinodermata (1)
  - Mollusca
    - Bivalvia (3)
    - Cephalopoda
      - Ammonoidea (5)
    - Gastropoda (3)
    - Scaphopoda (1)
    - Tentaculitida
      - Tentaculitidae
        
        Tentaculites (1)
  - Porifera
    - Demospongea (1)
    - Stromatoporoidea (1)
  - Protista
    - Foraminifera (3)
    - Thecamoeba (1)
  - Vermes
    - Annelida (2)
    - Phoronida (1)
- isostasy (1)
- isotopes
  - radioactive isotopes