Bivalvia - Nuculanida - Yoldiidae
Alternative spelling: Nampiella
Parent taxon: Yoldia according to A. I. Kafanov et al. 2001
Sister taxa: Yoldia (Cnesterium), Yoldia (Kalayoldia), Yoldia (Mirayoldia), Yoldia (Sachalinella), Yoldia (Yoldia), Yoldia blakeleyensis, Yoldia bocasensis, Yoldia clydoniona, Yoldia cupressensis, Yoldia diminutiva, Yoldia dowlingi, Yoldia duprei, Yoldia freytagi, Yoldia gala, Yoldia gladenkovi, Yoldia hikoshimensis, Yoldia impressa, Yoldia inaequisculpta, Yoldia kermadecensis, Yoldia kissoumi, Yoldia lacrima, Yoldia laevis, Yoldia limatula, Yoldia mater, Yoldia mcconnelli, Yoldia nasuta, Yoldia newcombi, Yoldia nitida, Yoldia olympiana, Yoldia peninsularis, Yoldia pisciformis, Yoldia rectangularis, Yoldia sagittalia, Yoldia sammamishensis, Yoldia sapotilla, Yoldia scaphoides, Yoldia serica, Yoldia subscitula, Yoldia supramontereyana
Subtaxa: Yoldia (Nampiella) laudabilis Yoldia (Nampiella) takaradaiensis Yoldia (Nampiella) tigilensis
Ecology: facultatively mobile infaunal deposit feeder
Distribution:
• Miocene of the Russian Federation (1 collection)
• Oligocene of Japan (13), the Russian Federation (5)
• Eocene of the Russian Federation (2)
Total: 21 collections including 23 occurrences