†superfamily Cyrtonelloidea Knight and Yochelson 1958 (mollusk)

Tergomya - Cyrtonellida

Alternative spelling: Cyrtonellacea

Full reference: J. B. Knight and E. L. Yochelson. 1958. A reconsideration of the Monoplacophora and the primitive Gastropoda. Proceedings of the Malacological Society of London 33(1):37-48

Parent taxon: Cyrtonellida according to P. J. Wagner 2023

See also Knight and Yochelson 1958, Knight and Yochelson 1960 and Wahlman 1992

Sister taxa: Aremellia, Carcassonnellidae, Cyrtolitidae, Hamusella, Pollicinidae, Tetamocornu, Yangtzeconus

Subtaxa: Cyclocyrtonellidae Cyrtonellidae Multifariidae

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Ecology: slow-moving low-level epifaunal grazer

Distribution:

• Devonian of United States (9: New York collections)

• Silurian of Czechia (1)

• Ordovician of Estonia (2), Sweden (1), the United Kingdom (1), United States (2: Tennessee, Virginia)

Total: 16 collections each including a single occurrence

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