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trace fossils
общ.	Spurenfossilien n
Английский тезаурус
trace fossils
палеонт.	ichnofossils (MichaelBurov)
поясн.	Trace fossils are the evidence of biological activity of an organism in the geologic record, but without some part of the animal or plant itself actually preserved. Typical trace fossils are footprints or trails, compared to body fossils such as bones or petrified wood. (MichaelBurov)