Tucetona

Remarks

Common name: Bittersweet (or Dog Cockle) Clams.

Tucetona Iredale, 1939.

Geological range: Late Cretaceous to Recent (source: Paleobiology Database).

Geographic distribution: A distributional map for modern Tucetona may be accessed from OBIS. A distributional map for ancient Tucetona may be accessed from the Paleobiology Database.

Diversity: The WoRMS database recognizes 50 species of extant Tucetona (unvetted). The Paleobiology Database recognizes 12 species from the fossil record (unvetted).

Paleoecology: All species of Tucetona are epifaunal or infaunal suspension feeders and are unattached and actively mobile. Source: Todd (2016).

Phylogenetic status: Unknown. A recent molecular phylogenetic analysis by Combosch and Giribet (2016) found that the extant species Tucetona pectinata is nested within the paraphyletic genus Glycymeris.