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:
footprints
tail drags
belly drag marks-(tetrapods)
chain of trace platforms–(example: Yorgia)
body imprint-(Monuron trackway, insect)
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.
Hominid trackways
The foremost hominid trackway is the 3.7 mya Laetoli footprints of Tanzania. The trackway is now preserved under a protective layer of earth.
Early Tetrapod trackways
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.