Yochelcionelloidea

Yochelcionelloidea
Temporal range: Lower Cambrian–Mid Cambrian
Yochelcionella cyrano
Scientific classification
Kingdom:Animalia
Phylum:Mollusca (?)
Class:†Helcionelloida
Order:†Helcionelliformes
Superfamily:†Yochelcionelloidea
Runnegar & Jell, 1976

Yochelcionelloidea is an extinct superfamily of paleozoic molluscs of uncertain position (Gastropoda or Monoplacophora).[1] The earliest yochelcionellids are known from the Middle Tommotian, but they are most diverse from the Botomian through the early Middle Cambrian.[2]

2005 taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005:

Yochelcionelloidea

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:[3][4]

  • Superfamily Yochelcionelloidea Runnegar & Jell, 1976
  • Subfamily Stenothecinae Runnegar & Jell, 1980
  • Subfamily Watsonellinae Parkhaev, 2001

References

  1. ↑ Bouchet, Philippe; Rocroi, Jean-Pierre; Frýda, Jiri; Hausdorf, Bernard; Ponder, Winston; Valdés, Ángel & Warén, Anders (2005). "Classification and nomenclator of gastropod families". Malacologia. Hackenheim, Germany: ConchBooks. 47 (1–2): 1–397. ISBN 3-925919-72-4. ISSN 0076-2997.
  2. ↑ 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.
  3. ↑ P. Yu. Parkhaev (2006) "Adaptive radiation of the Cambrian helcionelloid mollusks (Gastropoda, Archaeobranchia). Archived June 13, 2011, at the Wayback Machine." In: S.V. Rozhnov (ed.) "Evolution of the biosphere and biodiversity. Towards the 70th anniversary of A. Y. Rozanov". 2006. Moscow, pp. 282-296.
  4. ↑ 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.
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