Igarkiellidae
Encyclopedia
Igarkiella is the sole genus of Igarkiellidae, an extinct family
of Paleozoic fossil molluscs of uncertain position.
categorizes Igarkiellidae in the superfamilia Scenelloidea
within the
Paleozoic molluscs of uncertain systematic position. This family has no subfamilies.
Peel, 1991.
Family
In human context, a family is a group of people affiliated by consanguinity, affinity, or co-residence. In most societies it is the principal institution for the socialization of children...
of Paleozoic fossil molluscs of uncertain position.
2005 taxonomy
The taxonomy of the Gastropoda by Bouchet & Rocroi, 2005Taxonomy of the Gastropoda (Bouchet & Rocroi, 2005)
The taxonomy of the Gastropoda as it was revised by Philippe Bouchet and Jean-Pierre Rocroi is currently the most up-to-date overall system for classifying gastropod mollusks...
categorizes Igarkiellidae in the superfamilia Scenelloidea
Scenelloidea
Scenelloidea is an extinct superfamily of paleozoic molluscs of uncertain position .- Families :Based on the taxonomy of the Gastropoda by Bouchet & Rocroi families in the Scenelloidea include:* † Scenellidae...
within the
Paleozoic molluscs of uncertain systematic position. This family has no subfamilies.
2006–2007 taxonomy
According to the P. Yu. Parkhaev, is the Coreospiridae the family in the family Helcionelloidea Wenz, 1938 in the order Helcionelliformes Golikov & Starobogatov, 1975 within the subclass Archaeobranchia Parkhaev, 2001 in the class HelcionelloidaHelcionelloida
Helcionelloida is the name given to an extinct group of ancient molluscs . 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 erected by Peel in 1991.-Anatomy:These animals were...
Peel, 1991.