Mactridae Lamarck, 1809
Common Name: Duck Clams
Key morphological features: Shells are thin, smooth, triangular in shape, and covered with an outer layer called a periostracum
MOBILITY: Mobile (burrow)
FEEDING MODE: Suspension Feeder
Cox, L. R. et al. 1969. Bivalvia, in R. C. Moore ed., Treatise on Invertebrate Paleontology, Part N, Mollusca 6, Volume 2. The University of Kansas and Geological Society of America. 1224 pp.