Chitons are marine molluscs of varying size in the class Polyplacophora, formerly known as Amphineura. About 940 extant and 430 fossil species are recognized.
Charales is an order of freshwater green algae in the division Charophyta, class Charophyceae, commonly known as stoneworts. Depending on the treatment of the genus Nitellopsis, living (extant) species are placed into either one family (Characeae) or two. Further families are used for fossil members of the order. Linnaeus established the genus Chara in 1753.
Calliostoma is a genus of small to medium-sized sea snails with gills and an operculum, marine gastropod molluscs within the family Calliostomatidae, the Calliostoma top snails. Previously this genus was placed within the family Trochidae. Calliostoma is the type genus of the family Calliostomatidae.
Cadulus is a large genus of small tusk shells in the family Gadilidae. It contains over fifty-one described species.
Homalopoma, common name the dwarf turbans, is a genus of mostly very small sea snails with a calcareous operculum, marine gastropoda molluscs in the subfamily Colloniinae of the family Colloniidae.
Dentalium is a large genus of tooth shells or tusk shells, marine scaphopod molluscs in the family Dentaliidae. The genus contains 50 described species and about 50 extinct species.
Chitonidae is a family of chitons or polyplacophorans, marine mollusks whose shell is composed of eight articulating plates or valves. There are fifteen extant genera in three subfamilies.
Cymbulioidea is a taxonomic superfamily of pelagic "sea butterflies", one group of swimming sea snails. They are holoplanktonic opisthobranch gastropod molluscs in the clade Thecosomata.
Chitonida is an order of chitons.
Liotia is a genus of very small sea snails, marine gastropod mollusks in the family Liotiidae.
Neoterebra crassireticula is a species of sea snail, a marine gastropod mollusk in the family Terebridae, the auger snails.
Compsodrillia is a genus of sea snails, marine gastropod mollusks in the family Pseudomelatomidae, the turrids and allies.
Polystira is a genus of sea snails, marine gastropod mollusks in the family Turridae, the turrids.
Pleurotomella is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae.
Ancistrobasis is a genus of sea snails, marine gastropod mollusks in the family Seguenziidae.
Mopaliidae is a family of marine molluscs in the class Polyplacophora.
Antalis is a genus of tusk shells, marine scaphopod mollusks.
The Interim Register of Marine and Nonmarine Genera (IRMNG) is a taxonomic database which attempts to cover published genus names for all domains of life from 1758 in zoology up to the present, arranged in a single, internally consistent taxonomic hierarchy, for the benefit of Biodiversity Informatics initiatives plus general users of biodiversity (taxonomic) information. In addition to containing over 490,000 published genus name instances as at March 2020, the database holds over 1.7 million species names, although this component of the data is not maintained in as current or complete state as the genus-level holdings. IRMNG can be queried online for access to the latest version of the dataset and is also made available as periodic snapshots or data dumps for import/upload into other systems as desired.
Fissidentalium is a genus of molluscs belonging to the family Dentaliidae.
Calliodentaliidae is a family of molluscs belonging to the order Dentaliida. The family consists of only one genus: CalliodentaliumHabe, 1964.
