Protothaca (Novathaca) (venus clam)
Bivalvia - Cardiida - Veneridae
Alternative spelling: Novathaca
Parent taxon: Protothaca according to L. R. Cox et al. 1969
See also Sepkoski 2002
Sister taxa: Leukoma asperrima, Leukoma beili, Leukoma columbiensis, Leukoma dolicha, Leukoma ecuadoriana, Leukoma grata, Leukoma histrionica, Leukoma laciniata, Leukoma metodon, Leukoma pertincta, Leukoma staleyi, Leukoma staminea, Leukoma thaca, Protothaca (Tropithaca) seymourensis, Protothaca (Protothaca)
Subtaxa: none
Ecology: facultatively mobile infaunal suspension feeder
Distribution: found only at Nutovskaya Suite (upper) - Nutovo River, Okha District, Sakhalin (Pliocene of Russian Federation)