Arthropod trackways Insect trackways

Bifurculapes

Four regular rows of tracks which fork when united at the base; may have additional two rows with pairs of opposing tracks. Insect trackways are scarce in the early Palaeozoic, diversity increases by the end Carboniferous.

Hamipes

Two paired, regular, parallel rows of tracks; curved inward - hook shaped. Insects tend to use alternating gaits, though the precise walking techniques which produced these trackways is speculative.

Lithographus

Two sometimes three rows of tracks on each side of the mid-line, with oblique markings on the outside of the longitudinal ones.

Permichnium

Two parallel, equidistant and equal rows of V-shaped tracks, open to the exterior of the trackway; indicate equal length walking feet producing two tracks that meet.