Funalichnus strangulatus Fritsch, 1883

Description. – Straight, oblique, cylindrical, unlined and unbranched burrow, ornamented by closely spaced, distinct, swollen ribs, which are oriented slightly obliquely towards the longitudinal axis. The interspaces be tween the cylindrical ribs form curved depres ions. The bur row fill is structureless. The burrow is circular to subcircular in cross-section. The diameter of the burrow ranges from 1.0–1.5 cm. The vis ble length is 7.5 cm