Palmichnium Richter, 1954

DESCRIPTION: Trackway consisting of a median furrow flanked by paired sets of three imprints with concave adaxial with a curve posterior of the midlength of the imprints. Rarely, imprints are arranged parallel to track axis, appearing as two single rows of tracks. Depth of imprints decreases from outer imprints to inner imprints.

BEHAVIOR(S): Repichnia (locomotion)

ENVIRONMENTAL SETTINGS: Marine and continental freshwater environments

POSSIBLE TRACEMAKERS: Arthropod with 6 or 8 legs, such as eurypterid or scorpion

GEOLOGIC RANGE: Cambrian–Permian

ADDITIONAL REFERENCES: Emended by Briggs and Rolfe (1983); Braddy and Milner (1998)

REMARKS: Similar to other locomotion trails with multiple footfalls and a central furrow, such as Kouphichnium. Description and geologic range from Briggs and Rolfe (1983) and Braddy and Milner (1998).