Bivalvia - Cardiida - Mactridae
Synonyms: Spisula (Symmorphomactra), Symmorphomactra
Parent taxon: Mactridae according to E. V. Coan and P. Valentich-Scott 2012
See also Coan et al. 2000, Hickman 2015, Moore 2003, Oldroyd 1925, Packard 1916 and Sepkoski 2002
Sister taxa: Darcinia, Darininae, Hemimactra, Leptomactra, Longimactra, Lutrariinae, Mactrinae, Mactropsis, Mactrotoma, Mulinia, Mulinoides, Pteroluter, Pteropsis, Rangia, Scissodesma, Spisula, Tanysiphoninae, Willimactra, Zenatiinae, Gnathodon
Subtaxa: Simomactra dolabriformis Simomactra falcata Simomactra planulata
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Quaternary of Mexico (1 collection), United States (17: California, Oregon)
• Pliocene of United States (5: California)
• Eocene of United States (1: Oregon)
Total: 24 collections including 25 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.