†subfamily Praenuculinae McAlister 1969 (clam)
Bivalvia - Nuculida - Praenuculidae
Parent taxon: Praenuculidae according to J. G. Carter et al. 2011
See also Sanchez 1999
Sister taxa: Arcodonta, Bicrenucula, Concavodontinae, Costaledopsis, Fidera, Habonucula, Homilodonta, Ledopsis, Nuculodonta, Palaeoconcha, Palaeoconchiella, Paulinea, Pensarnia, Praenucula, Pseudoledopsis, Pseudonucula, Similodonta, Smilodonta, Synek, Tironucula
Subtaxa: Cuyopsis Trigonoconcha Villicumia
Ecology: facultatively mobile shallow infaunal deposit feeder
Distribution: found only at south side of the Quebrada La Pola, Eastern flank of Sierra de Villicum (Ordovician of Argentina)