Yochelcionelloidea is an extinct superfamily of paleozoic molluscs of uncertain position (Gastropoda or Monoplacophora). The earliest yochelcionellids are known from the Middle Tommotian, but they are most diverse from the Botomian through the early Middle Cambrian.Pavel Yu. Parkhaev (2008). "The Early Cambrian Radiation of Mollusca." In: "Phylogeny and evolution of the Mollusca." Edited by: Ponder WF, Lindberg DR. Berkeley: University of California Press: 33-69.
2005 taxonomy The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005:
Yochelcionelloidea † Yochelcionellidae † Stenothecidae † Trenellidae
2006-2007 taxonomy According to the opinion of P. Yu. Parkhaev is in the class Helcionelloida, subclass Archaeobranchia Parkhaev, 2001, Order Helcionelliformes Golikov & Starobogatov, 1975:P. Yu. Parkhaev (2006) "Adaptive radiation of the Cambrian helcionelloid mollusks (Gastropoda, Archaeobranchia). " In: S.V. Rozhnov (ed.) "Evolution of the biosphere and biodiversity. Towards the 70th anniversary of A. Y. Rozanov". 2006. Moscow, pp. 282-296.P. Yu. Parkhaev (2007) "The Cambrian ‘basement’ of gastropod evolution". In: Vickers-Rich, P. & Komarower, P. (eds.) "The Rise and Fall of the Ediacaran Biota", Special publications, 286, London: Geological Society, pp. 415–421.
Superfamily Yochelcionelloidea Runnegar & Jell, 1976 Family Trenellidae Parkhaev, 2001 Family Yochelcionellidae Runnegar & Jell, 1976 Family Stenothecidae Runnegar & Jell, 1980 Subfamily Stenothecinae Runnegar & Jell, 1980 Subfamily Watsonellinae Parkhaev, 2001
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