Tracemaker. Conichnus has been attributed to the activity of sea anemones (modern ceriantharid anemones) or similar animals (Shinn, 1968; Radwanski et al., 1975; Curran and Frey, 1977; Frey and Howard, 1981; Howard and Frey, 1984; Pemberton et al., 1992; MacEachern and Pemberton, 1992; Pollard et al., 1993; Savrda, 2002). The present structures (up to 1.8 m in length and 0.14 m in width) are large compared to most other Conichnus. Very few examples of large Conichnus have been reported previously. Savrda (2002) described specimens up to 1.4 m long and 13-14 cm wide from Upper Cretaceous Eutaw Formation of Alabama (USA), and Curran and Frey (1977) noted specimens that are »3 m long and 24 cm in diameter from Pleistocene deposits of North Carolina (USA).