Fuersichnus Bromely and Asgaard, 1979

DESCRIPTION: Retrusive U-shaped tube or trail that form spreiten. Walls smooth or bulbous, horizontal or vertically oriented. Typically 0.3-1 cm in diameter and 0.1-2 cm in depth.

BEHAVIOR(S): Deposit feeding (fodinichnia).

ENVIRONMENTAL SETTINGS: Continental freshwater aquatic (fluvial, palustrine, or lacustrine).

POSSIBLE TRACEMAKERS: Mayfly nymphs

GEOLOGIC RANGE: Triassic-recent

ADDITIONAL REFERENCES: Hasiotis, 2002, 2004, 2006