Bivalvia - Cardiida - Mactridae
Alternative spelling: Mactra (Mactrotoma)
Synonyms: Mactra (Micromactra) Dall 1894, Mactroderma Dall 1894, Mactrotoma (Micromactra) Dall 1894, Micromactra Dall 1894
Parent taxon: Mactridae according to E. V. Coan and P. Valentich-Scott 2012
See also Coan et al. 2000, Hodson and Hodson 1931, Packard 1916 and Pilsbry and Olsson 1941
Sister taxa: Darcinia, Darininae, Hemimactra, Leptomactra, Longimactra, Lutrariinae, Mactrinae, Mactropsis, Mulinia, Mulinoides, Pteroluter, Pteropsis, Rangia, Scissodesma, Simomactra, Spisula, Tanysiphoninae, Willimactra, Zenatiinae, Gnathodon
Subtaxa: Mactrotoma angusta Mactrotoma californica Mactrotoma fragilis Mactrotoma isthmica Mactrotoma nasuta Mactrotoma quirosana Mactrotoma velata
Type: Mactra fragilis
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Quaternary of Costa Rica (1 collection), Ecuador (1), Jamaica (1), Mexico (1), Panama (1), South Africa (5), United States (23: California, Florida, Louisiana, North Carolina, South Carolina)
• Pliocene of Ecuador (1), Trinidad and Tobago (2), United States (2: Florida), Venezuela (1)
• Miocene of Colombia (9), Trinidad and Tobago (1), United States (1: Florida), Venezuela (3)
• Oligocene of United States (2: Alaska)
Total: 55 collections including 59 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.