Ichnofossils are quite characteristic of the Lower Ordovician terrigenous formations of Tuva. Traces of vital activity of organisms found in the Lower Ordovician section of the Ulug-Khondergey-Koshara include Trypanites Magdefrau, Scoyenia White, ?Skolithos Haldeman, ?Conichnus Mannil. A new ichnotaxon Trypanites khondergensis is proposed for the Tuvan Trypanites.
