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ichnofauna

n. fauna that leaves tracks, spoor, footprints etc

Wikipedia
Ichnofauna

Ichnofauna is the diversity of fauna based on the ichnological ( tracks and footprints) evidences. This term is often used by vertebrate paleontologists.

Ichnofauna often uses parataxonomical names for tracks such as Deltapodus, Eubrontes, or Cruziana. Ichnofauna does not give a true content of the fauna assemblage, because of bias of preservation.