Yochelcionelloidea
Extinct superfamily of molluscs
From Wikipedia, the free encyclopedia
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]
Phylum:Mollusca
Class:†Helcionelloida
Order:†Helcionelliformes
Superfamily:†Yochelcionelloidea
Runnegar & Jell, 1976
Runnegar & Jell, 1976
| Yochelcionelloidea Temporal range: | |
|---|---|
| |
| Yochelcionella cyrano | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | †Helcionelloida |
| Order: | †Helcionelliformes |
| Superfamily: | †Yochelcionelloidea Runnegar & Jell, 1976 |
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
- Family Trenellidae Parkhaev, 2001
- Family Yochelcionellidae Runnegar & Jell, 1976
- Family Stenothecidae Runnegar & Jell, 1980
- Subfamily Stenothecinae Runnegar & Jell, 1980
- Subfamily Watsonellinae Parkhaev, 2001