Family Cyamiidae Philippi 1845 (clam)
Bivalvia - Cardiida - Cyamiidae
Parent taxon: Cyamioidea according to J. G. Carter et al. 2011
See also Beu et al. 1990, Bouchet et al. 2010, Nevesskaja 2009, Newell 1965, Rosenberg 2005 and Vokes 1980
Sister taxa: Basterotiidae, Galatheavalvidae, Neoleptonidae, Perrierinidae, Sportellidae
Subtaxa: Cyamiomactra Cyamium Kidderia Legrandina Perrierina
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Quaternary of Argentina (4 collections)
• Pliocene of Antarctica (1), the United Kingdom (1)
• Miocene of New Zealand (1)
Total: 7 collections each including a single occurrence