Trochonematidae is an

extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...

taxonomic 280px, Generalized scheme of taxonomy Taxonomy is a practice and science concerned with classification or categorization. Typically, there are two parts to it: the development of an underlying scheme of classes (a taxonomy) and the allocation ...

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserve ...

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

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 current power * Marine debris * Marine energy * Marine habitats * Mari ...

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusc Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...

s in the superfamily

Trochonematoidea Trochonematoidea is an extinct taxonomic superfamily of fossil sea snails, marine gastropod molluscs. Families Families with the superfamily Trochonematoidea include: * † Trochonematidae Trochonematidae is an extinct Taxonomy (biology), ta ...

. This family has no subfamilies.

Genera

* † '' Alanstukella'' Mazaev, 2020 * † '' Amaurotoma'' Knight, 1945 * † '' Knightinella'' Likharev, 1975 * † ''

Trochonema Trochonema is an extinct genus of early marine snail from the Paleozoic, which lasted almost 215 million years. It was first described by John William Salter in 1859. Like many genera in the order Murchisoniina, the relationship between it and ot ...

'' Salter, 1859 - the

type genus In biological taxonomy, the type genus (''genus typica'') 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-bearin ...

* † '' Vicnigoria'' Mazaev, 2019

References

External links

* 1913
''Text-book of paleontology''
page 530.
Zittel, K. A. von. (1895). Grundzüge der Paläontologie (Paläozoologie), I Abteilung, Invertebrata. Oldenburg. München and Leipzig. viii + 971 p.

Bouchet, P. & Rocroi, J.-P. (2005). Classification and nomenclator of gastropod families. Malacologia. 47 (1-2): 1-397.
Gastropod families {{paleo-gastropod-stub