Formation and Taphonomy of Human Footprints in Microbial Mats of Present-Day Tidal-flat Environments: Implications for the Study of Fossil Footprints

It is suggested that modified true tracks and overtracks make up an important percentage of fossil footprints and that they may be as common as undertracks and that making unambiguous distinctions between poorly defined true tracks, modifiedtrue tracks, undertracks, and over tracks in the fossil record will remain a difficult task.