†Cyclina (Cyclinorbis) Makiyama 1926 (venus clam)
Bivalvia - Cardiida - Veneridae
Alternative spelling: Cyclinorbis
Parent taxon: Cyclina according to T. Matsubara et al. 2010
See also Sepkoski 2002
Sister taxa: Cyclina compressa, Cyclina lunulata, Cyclina nodai
Subtaxa: none
Ecology: facultatively mobile infaunal suspension feeder
Distribution: found only at Th Loc 5 (Eocene to Eocene of Japan)