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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
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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
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
noun.object
6 Subcategories
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fucoid go
a fossilized cast or impression of algae of the order Fucales
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belemnite go
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
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ammonite, ammonoid go
one of the coiled chambered fossil shells of extinct mollusks
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index fossil, guide fossil go
a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found
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microfossil go
a fossil that must be studied microscopically
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wormcast go
fossil trail of a worm