Diagnosis.—Small to medium, straight to curved, bilobate ribbonlike furrow with medial ridge and curved V-shaped striations angled ~160º (Seilacher, 1970; Legg, 1985).
Description. Shallow bilobed furrows preserved on the soles of beds 3 6 to 8 7 cm wide with coarse more or less equal scratches in bundles of at least three and making a high V angle typically 1200 to 1600 Genal spine marks are absent The trails rarelyoccur as straight sided constant width trace fossils and they tend to broaden out in the anterior direction.