liik
Helminthopsis tenuis Książkiwicz, 1968
Taksoni kirjeldused
Buatois & Mángano, 2012a
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).
Sünonüümika
1877 Helminthopsis magna — Heer , lk. 116
1886 Montfortia filiformis — Lebesconte , lk. 783, joon. Pl. 34:7
1977 Helminthopsis tenuis Książkiwicz, 1968 — Książkiwicz , lk. 120, joon. 12:1
1985 Helminthopsis tenuis Książkiwicz, 1968 — Crimes & Anderson , lk. 325, joon. fig. 7.8
1992 Helminthopsis tenuis Ksiazkiewicz, 1968 — Pickerill , lk. 27, joon. 4B
1996 Helminthopsis tenuis Książkiwicz, 1968 — Paczesna , lk. 60, joon. Plate XI:3
1998 Helminthopsis tenuis — Wentzel et al. , lk. 312
2007 Helminthopsis tenuis — Landing et al. , lk. 288, joon. 1
2012 Helminthopsis tenuis Ksiazkiewicz, 1968 — Buatois & Mángano , lk. 10
2019 Helminthopsis tenuis Ksiazkiewicz, 1968 — Gougeon et al. , lk. 16, joon. Fig. 6.3; 6.4; 7
Valik taksonit käsitlevast teaduskirjandusest
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. DOI:10.18814/epiiugs/2007/v30i4/004
Klassifikatsioon
organismirühm | Biota |
ihnorühm | Ichnofossils |
Bioturbation trace fossils | |
perekond | Helminthopsis |
liik | abeli |
hieroglyphica | |
tenuis |
Levik kirjandusandmetel
- Landing et al., 2007 Grand Bank Head, Burin poolsaar, Kanada Terre-Neuve