Rusophycus latus Webby, 1983

Diagnosis. - Gently curved to sinuous horizontal trails, from 0.5-1.0 mm wide, with rare inclined burrows.

Description. - Simple, almost straight to sinuous horizontal trails usually 0.5-1.0 mm wide, and rare inclined to near vertical burrows of the same dimensions. Trails preserved on bedding surfaces are highly compressed and usually limonite filled. However, one sinuous trail is infilled with shale like the surrounding rock (Fig. 16D). Parts of other trails exhibit faint longitudinal ribbing (Fig. 16B).