Pupinidae is a taxonomic family of land snails with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea.
Ariophantidae is a taxonomic family of air-breathing land snails and semi-slugs, terrestrial pulmonate gastropod mollusks in the superfamily Helicarionoidea.
Dyakiidae is a family of air-breathing land snails terrestrial pulmonate gastropod mollusks in the superfamily Trochomorphoidea.
Campanile is a genus of large sea snails, marine gastropod molluscs in the family Campanilidae.
Ellobium is a genus of medium-sized, air-breathing, saltmarsh snails, terrestrial pulmonate gastropod mollusks in the family Ellobiidae.
Nihonia is a genus of sea snails, marine gastropod mollusks in the family Cochlespiridae.
Orania nodosa is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Semiricinula muricoides is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Semiricinula turbinoides is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Taurasia striata is a species of sea snail, a marine gastropod mollusc in the family Muricidae, the murex snails or rock snails.
Taurasia is a genus of sea snails, marine gastropod molluscs in the subfamily Rapaninae of the family Muricidae, the murex snails or rock snails.
Agaronia adamii is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olives.
Agaronia gibbosa is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olives.
Labiostrombus epidromis, common name the swan conch, is a species of sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs.
Varicospira is a genus of sea snails, marine gastropod mollusks in the family Rostellariidae within the Stromboidea, the true conchs and their allies.
Auriculastra duplicata is a species of air-breathing land snail, a terrestrial gastropod mollusc in the family Ellobiidae, the salt marsh snails.
Turricula is a genus of sea snails, marine gastropod mollusks in the family Clavatulidae.
Pleurofusia is an extinct genus of sea snails, marine gastropod molluscs in the family Drilliidae.
Semiricinula muricina is a species of sea snail, a marine gastropod mollusk, in the family Muricidae, the murex snails or rock snails.
This list of fossil molluscs described in 2021 is a list of new taxa of fossil molluscs that were described during the year 2021, as well as other significant discoveries and events related to molluscan paleontology that occurred in 2021.
