Palaeophycus serratus McCann, 1993

Diagnosis. Simple Palaeophycus burrows with transverse
ribbing.
Description. Lined burrows preserved in convex hyporelief
on soles of 11.0-37.0 mm thick mudstone to medium-grained, parallel-laminated and normally graded sandstone. Burrows 4.0-5.0 mm in diameter, straight to very gently winding, and up to 55 mm in length. Burrow fill identical to host rock. Annulae faintly marked with
2-4 per mm.