Trachomatichnus Miller 1880
DESCRIPTION: Trackway of 2 rows of simple linear or beaded impressions sometimes with orthoconic cephalopod shells at the end.
BEHAVIOR(S): Resting, feeding traces
ENVIRONMENTAL SETTINGS: Marine
POSSIBLE TRACEMAKERS: Orthoconic cephalopods or trilobites
GEOLOGIC RANGE: Ordovician-Devonian
ADDITIONAL REFERENCES: Flower, Rousseau H. Journal OF Paleontology, Vol. 29, No. 5, p. 857-867.
REMARKS: These traces are considered to be made by swimmers that came to rest on the bottom, fed, moved forward, and at a later time, died.