Bivalvia - Nuculanida - Yoldiidae
Alternative spelling: Kalayoldia
Full reference: U. S. Grant, IV and H. R. Gale. 1931. Catalogue of the Marine Pliocene and Pleistocene Mollusca of California. Memoirs of the San Diego Society of Natural History 1:1-1036
Parent taxon: Yoldia according to E. V. Coan et al. 2000
See also Grant, IV and Gale 1931, Moore 1976, Moore 1983 and Sepkoski 2002
Sister taxa: Yoldia (Cnesterium), Yoldia (Mirayoldia), Yoldia (Nampiella), Yoldia (Sachalinella), Yoldia (Yoldia), Yoldia blakeleyensis, Yoldia bocasensis, Yoldia clydoniona, Yoldia cupressensis, Yoldia dowlingi, Yoldia duprei, Yoldia evansi, Yoldia freytagi, Yoldia gala, Yoldia gladenkovi, Yoldia hikoshimensis, Yoldia impressa, Yoldia inaequisculpta, Yoldia kermadecensis, Yoldia kissoumi, Yoldia laevis, Yoldia limatula, Yoldia mater, Yoldia mcconnelli, Yoldia nasuta, Yoldia newcombi, Yoldia nitida, Yoldia olympiana, Yoldia peninsularis, Yoldia pisciformis, Yoldia sagittalia, Yoldia sammamishensis, Yoldia sapotilla, Yoldia scaphoides, Yoldia serica, Yoldia subscitula, Yoldia supramontereyana
Subtaxa: Yoldia (Kalayoldia) carnarosensis Yoldia (Kalayoldia) cooperii Yoldia (Kalayoldia) gesteri Yoldia (Kalayoldia) oregona Yoldia (Kalayoldia) submontereyensis Yoldia (Kalayoldia) supramontereyensis Yoldia (Kalayoldia) tenuissima
Ecology: facultatively mobile infaunal deposit feeder
Distribution:
• Quaternary of United States (15: California collections)
• Pliocene of United States (2: California, Oregon)
• Miocene of United States (3: California, Washington)
• Oligocene of United States (17: California, Oregon, Washington)
• Eocene of United States (10: California, Oregon)
• Paleocene of United States (2: California)
Total: 49 collections including 51 occurrences