Fossil trackway

A fossil trackway is a type of trace fossil, a trackway made by an organism. Many fossil trackways were made by dinosaurs, early tetrapods, and other quadrupeds and bipeds on land. Marine organisms also made many ancient trackways (such as the trails of trilobites and eurypterids like Hibbertopterus).

Some basic fossil trackway types:

The majority of fossil trackways are foot impressions on land, or subsurface water, but other types of creatures will leave distinctive impressions. Examples of creatures supported, or partially supported, in a water environment are known. The fossil "millipede-type" genus Arthropleura left its multi-legged/feet trackways on land.

The foremost hominid trackway is the 3.7 mya Laetoli footprints of Tanzania. The trackway is now preserved under a protective layer of earth.

The earliest land creatures (actually land-marine coastal-riverine-marshland) left some of the first terrestrial trackways. They range from tetrapods to proto-reptilians and others.

The Permo-Carboniferous of Prince Edward Island contains trackways of tetrapods and stem-reptiles. Macrofloral, and palynological data help date them.

Ireland hosts Late Devonian tetrapod trackways from the Valentia Slate Formation. (The article discusses the history of the tetrapods, lobe-finned fish, and the ray-finned fish-(the later teleosts).

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