Ichnotaxon

An ichnotaxon (plural ichnotaxa) is "a taxon based on the fossilized work of an organism", i.e. the non-human equivalent of an artifact.

Ichnotaxon comes from the Ancient Greek ἴχνος (íchnos) meaning "track" and English taxon, itself derived from Ancient Greek τάξις (táxis) meaning "ordering".

They are assigned genus and species ranks by ichnologists, much like organisms in Linnaean taxonomy.

[2] Due to trace fossils' history of being difficult to classify, there have been several attempts to enforce consistency in the naming of ichnotaxa.

This had the effect that names for most trace fossil taxa published after 1930 were unavailable under the code.