Trace fossil · Dwelling

Ophiomorpha

A cylindrical burrow with a smooth inner wall and a knobby (nodose) outer wall; the textbook describes the lining as made of fecal pellets. Branching is irregular, Y-shaped where present.

Behavior

Dwelling

Likely maker

Crustaceans.

Age range

Early Permian to Recent; crustacean burrows become prominent in the Jurassic.

Setting

Mainly near-shore (Skolithos ichnofacies); O. rudis also occurs in deep-water turbidites (Nereites ichnofacies) since the Late Jurassic.

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All trace fossils Ichnofacies