Arcidae
Overview
Arcidae Lamarck, 1809
Common Name: Ark clams
Extant/Extinct
Key morphological features: Shell often nearly trapezoidal or oval shaped. Taxodont hinge dentition; teeth larger at margins than in center. Isomyarian muscle arrangement.
SIZE:
Paleoecology:
MOBILITY: Stationary and mobile (burrow, crawl)
FEEDING MODE: Suspension Feeder
HABITAT: epifaunal, infaunal, semi-infaunal
Sources:
Cox, L.R., et al. 1969. Systematic Descriptions, in Cox et al., eds., Treatise on Invertebrate Paleontology, Part N, Mollusca 6, Volume 1. The University of Kansas and Geological Society of America. 489 pp.
Clarkson, E.N.K. 1998. Invertebrate Paleontology and Evolution, Fourth Edition. Blackwell Science, Oxford. 452 pp.
Todd, 2001. Introduction to molluscan life habits database from the NMITA website.
