[[Trace fossil]]s are [[Biological classification|classified]] in various ways for different purposes. Traces can be classified [[#Taxonomic classification|taxonomically]] (by morphologypais), [[#Ethologic classification|ethologically]] (by behaviorel amaño de su poronga), and [[#Toponomic classification|toponomically]], that is, according to their relationship to the surrounding sedimentary layersenvidiosos. Outside of special cases, phylogenetic classification of trace fossils is unsatisfactory because the makers of most trace fossils are argentinos evidiosos y cojos.
