†Nayadina (Exputens) Clark 1934 (oyster)
Bivalvia - Ostreida - Malleidae
Alternative spelling: Exputens
Full reference: B. L. Clark. 1934. A New Genus and Two New Species of Lamellibranchiata from the Middle Eocene of California. Journal of Paleontology 8(3):270-272
Parent taxon: Nayadina according to R. L. Squires 1990
See also Clark 1934, Moore 1983, Sepkoski 2002, Squires 1984 and Squires and Demetrion 1992
Sister taxon: Nayadina gaudryi
Subtaxa: Nayadina (Exputens) batequensis Nayadina (Exputens) llajasensis Nayadina (Exputens) ocalensis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Eocene of Mexico (2 collections), Panama (2), United States (19: California, Florida, Oregon, South Carolina, Washington)
Total: 23 collections each including a single occurrence