Velainellidae is a very small
taxonomic
Taxonomy is the practice and science of categorization or classification.
A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ...
family of
fossil sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
s,
marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
* Marine debris
* Marine habitats
* Marine life
* Marine pollution
Military
* ...
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusks in the superfamily
Trochoidea, the top snails, turban snails and their allies.
Genera
This family contains only one genus: the
Eocene genus ''Velainella'', named by Vasseur 1880 and found in
France.
Description
''Velainella'' has a long, narrow, almost straight-side shell with a smooth-lipped oval aperture.
Taxonomy changes
Bouchet & Rocroi, 2005 included the Velainellidae in the vetigastropod superfamily
Trochoidea, leaving the rank of the Vetigastropoda undecided. Previously W. F. Ponder and A. Warén 1988 put the Velainellidae in the
Loxonematoidea
Loxonematoidea is an extinct taxonomic superfamily of sea snails, marine gastropod mollusc
Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Aroun ...
(Koken 1889) a superfamily in the Mesogastropoda, Earlier, J. B. Knight, et al., 1960 in the
Treatise included the Velainellidae, with ''Vellainella'', in the Trochacea, as does Bouchet & Rocroi, 2005, but within the
Archaeogastropoda. Trochacea is the original spelling for what is now Trochoidea.
References
*J.Brookes Knight, et al. 1960. Systematic Descriptions (of gastropods); Treatise on Invertebrate Paleontology, Part I, Mollusca 1. Geological Soc of America and University of Kansas Press, 1960.
Velainellidae -Paleodb
External links
{{Trochoidea-stub