Ichnofossils

Helminthopsis tenuis Książkiwicz, 1968

Taxon description

Buatois & Mángano, 2012b

Simple, unbranched, meandering trails, oriented parallel to the bedding plane. Fill is identical to the host rock. Diameter is 0.7–1.1 mm. Maximum observed length is 14.0 mm. Preserved in full relief on sandstone tops.

Helminthopsis tenuis is particularly abundant in Ediacaran–Early Cambrian ichnofaunas (e.g., Buatois and Mangano, 2003a; Jensen et al., 2006). It is interpreted as a grazing trace (pascichnion) probably produced by vermiform animals (Ksiazkiewicz, 1977; Buatois et al., 1998).

Synonymy list
1877     Helminthopsis magna — Heer, pp. 116
1886     Montfortia filiformis — Lebesconte, pp. 783, fig. Pl. 34:7
1977     Helminthopsis tenuis Książkiwicz, 1968 — Książkiwicz, pp. 120, fig. 12:1
1985     Helminthopsis tenuis Książkiwicz, 1968 — Crimes & Anderson, pp. 325, fig. fig. 7.8
1992     Helminthopsis tenuis Ksiazkiewicz, 1968 — Pickerill, pp. 27, fig. 4B
1998     Helminthopsis tenuis — Wentzel et al., pp. 312
2007     Helminthopsis tenuis — Landing et al., pp. 288, fig. 1
2012     Helminthopsis tenuis Ksiazkiewicz, 1968 — Buatois & Mángano, pp. 10
2019     Helminthopsis tenuis Ksiazkiewicz, 1968 — Gougeon et al., pp. 16, fig. Fig. 6.3; 6.4; 7
Selection of related publications
Landing, E., Peng, S., Babcock, L. E., Geyer, G., Moczydlowska-Vidal, M. 2007. Global standard names for the Lowermost Cambrian Series and Stage. Episodes 30, 4, 287-289.
References based on distribution