Yochelcionelloidea
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]
| Yochelcionelloidea | |
|---|---|
 | |
| Yochelcionella cyrano | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | †Helcionelloida |
| Order: | †Helcionelliformes |
| Superfamily: | †Yochelcionelloidea Runnegar & Jell, 1976 |
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
- Family Trenellidae Parkhaev, 2001
- Family Yochelcionellidae Runnegar & Jell, 1976
- Family Stenothecidae Runnegar & Jell, 1980
- Subfamily Stenothecinae Runnegar & Jell, 1980
- Subfamily Watsonellinae Parkhaev, 2001
gollark: Run with `python3 [filename] [input code] [output executable]`.
gollark: It's Turing-complete, and demonstrates the principle of compiled languages maybe being slow.
gollark: ```pythonimport sysimport subprocesstemplate = """int main() { long long i = 0; while (i < 10000000000) { i++; } @CODE@}"""input = sys.argv[1]output = sys.argv[2]temp = "ignore-this-please"with open(input, "r") as f: contents = f.read() code = template.replace("@CODE@", contents) with open(temp, "w") as out: out.write(code)subprocess.run(["gcc", "-x", "c", "-o", output, temp])```
gollark: I finished my super-slow compiler!
gollark: Though GHC probably does optimize quite well, by now.
References
- 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.
- 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.
- 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.
- 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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