Rhizocorallium Zenker, 1836

DESCRIPTION: Large U-shaped, horizontal to subhorizontal spreite burrows, rarely branched. Burrows elongate, bandlike, straight or winding, some with subparallel longitudinal scratches on the burrow wall and within spreiten; fecal pellets in some cases common within the spreite and within the burrow (after Knaust, 2013).

BEHAVIOR(S): Dwelling (domichnia) of a suspension-feeder and/or burrow of a deposit feeder (fodinichnia).

ENVIRONMENTAL SETTINGS: Shallow to deep marine settings.

POSSIBLE TRACEMAKERS: Crustacean, annelid

GEOLOGIC RANGE: Cambrian-recent

ADDITIONAL REFERENCES: Uchman, 1998; Mørk and Bromley, 2008); Knaust, 2013; Oligmueller and Hasiotis, 2024.

REMARKS: Scratch marks indicate the medium (i.e. substrate) was a firmground.