''Trenella'' is the sole genus in the Trenellidae, an extinct

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

of paleozoic Yochelcionellids.

2005 taxonomy

The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005Bouchet P. & Rocroi J.-P. (Ed.); Frýda J., Hausdorf B., Ponder W., Valdés Á. & Warén A. 2005. ''Classification and nomenclator of gastropod families''. Malacologia: International Journal of Malacology, 47(1-2). ConchBooks: Hackenheim, Germany. . . 397 pp. http://www.vliz.be/Vmdcdata/imis2/ref.php?refid=78278 categorizes Trenellidae in the superfamilia Yochelcionelloidea within the Paleozoic molluscs of uncertain systematic position. This family has no subfamilies.

2006-2007 taxonomy

According to P. Yu. Parkhaev, the family Trenellidae is in the superfamily Yochelcionelloidea Runnegar & Jell, 1976 within the order Helcionelliformes Golikov & Starobogatov, 1975, subclass Archaeobranchia Parkhaev, 2001, class

Helcionelloida Helcionelloida is an extinct group of ancient molluscs (phylum Mollusca). These are the oldest known conchiferan molluscs, that is, they had a mineralised shell. Some members of this class were mistaken for Monoplacophorans. The class was ...

Peel, 1991.

Genera

Genera in the family Trenellidae include: * ''Trenella'' Parkhaev, 2001 -

type genus In biological taxonomy, the type genus is the genus which defines a biological family and the root of the family name. Zoological nomenclature According to the International Code of Zoological Nomenclature, "The name-bearing type of a nominal ...

of the family Trenellidae

References

Helcionelloida Prehistoric invertebrates of Australia Prehistoric mollusc genera Protostome enigmatic taxa {{paleo-mollusc-stub