#fossil  the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil
  supertype:  #remains__remain  any object that is left unused or still extant; "I threw out the remains of my dinner"
  subtype:  #fucoid  a fossilized cast or impression of algae of the order Fucales
  subtype:  #belemnite  a conical calcareous fossil tapering to a point at one end and with a conical cavity at the other end containing (when unbroken) a small chambered phragmocone from the shell of any of numerous extinct cephalopods of the family Belemnitidae
  subtype:  #ammonite__ammonoid  one of the coiled chambered fossil shells of extinct mollusks
  subtype:  #microfossil  a fossil that must be studied microscopically
  subtype:  #wormcast  fossil trail of a worm

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