Mermia

DESCRIPTION: Densely looped grooves or ridges.

BEHAVIOR(S): Locomotion trace

ENVIRONMENTAL SETTINGS: Continental, lacustrine

POSSIBLE TRACEMAKERS: Worms, chironomid midge larvae

GEOLOGIC RANGE: Devonian–recent

ADDITIONAL REFERENCES: Walker, 1985; Buatois & Mángano, 1993; Uchman et al., 2009

REMARKS: Mermia is synonymized with Gordia (Uchman et al., 2009).