Keircalia Smith, 1909
DESCRIPTION: Trackway with two parallel rows of closely spaced imprints with four central grooves, the outermost of which may be discontinuous. The width of the trackway is 12-13 mm, and the trackway may have a high degree of sinuosity. The individual imprints are sharp and often lunate in shape and lie transversely to the midline of the track and occasionally run into each other, forming a “patter” with no recognizable sets. The four grooves in the center of the trackway form two pairs, the inner pair is continuous but the outer pair is not.
BEHAVIOR(S): Repichnia
ENVIRONMENTAL SETTINGS: Freshwater environments such as shallow ephemeral lakes
POSSIBLE TRACEMAKERS: Arthropods, possibly terrestrial millipedes (Rolfe, 1980)
GEOLOGIC RANGE: Lower Devonian
ADDITIONAL REFERENCES: Walker (1985); Rolfe (1980)
REMARKS: Description from Walker (1985)
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