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.