Repichnia
(crawling trails) are the tracks, trails, or burrows made by
vagile (from Latin vagus meaning "wandering") animals
during directed locomotion rather other behavior. The producing
organism was apparently wandering from place to place by using
appendages in the case of arthropods. Such ichnofossils are
found as impressions on a sediment surface and are most commonly
preserved in low-lying areas and in aquatic environments. Different
movement patterns may be attributes to the same animal (e.g.,
walking, cantering, and galloping). Most typically, these trace
fossils follow bedding planes and the organism may have been
feeding as it traveled. Diplichnites,
Cruziana and Protichnites are
prime examples of Repichnia ichnofossils.