†Microcallista (Costacallista) conradiana meganosensis Clark and Woodford 1927 (venus clam)
Bivalvia - Venerida - Veneridae
Alternative combinations: Macrocallista conradiana meganosensis, Macrocallista meganosensis
Full reference: B. L. Clark and A. O. Woodford. 1927. The geology and paleontology of the type section of the Meganos Formation (lower Middle Eocene) of California. University of California Publications in Geological Sciences 17(2):63-142
Belongs to Microcallista (Costacallista) conradiana according to C. E. Weaver 1942
See also Clark and Woodford 1927 and Merriam and Turner 1937
Sister taxa: none
Ecology: facultatively mobile infaunal suspension feeder
Distribution:
• Eocene of United States (8: California collections)
Total: 8 collections each including a single occurrence