Bivalvia - Protobranchia - Nuculanidae
Synonyms: Crassoleda Savitskii 1969, Leda Schumacher 1817
Parent taxon: Nuculaninae according to J. D. Stilwell et al. 2004
Sister taxa: Adrana, Comitileda, Culunana, Jupiteria, Ledina, Pseudoportlandia
Subtaxa: Crassoleda crassatelloides, Leda (Leda), Leda (Spinula), Leda barranca, Leda caudata, Leda cochlearella, Leda gabbi, Leda lincolnensis, Leda lucida, Leda obolella, Leda projecta, Leda pygmaea, Leda radiata, Leda semistriata, Leda stewardi, Nuculana (Dacryomya), Nuculana (Nuculana), Nuculana (Politoleda), Nuculana (Praesaccella), Nuculana (Scaeoleda), Nuculana (Tenuileda), Nuculana (Thestyleda), Nuculana acuta, Nuculana akidota, Nuculana alpina, Nuculana andrewi, Nuculana antarctirostrata, Nuculana asiatica, Nuculana biangulata, Nuculana chapmani, Nuculana coelata, Nuculana coelatella, Nuculana concentrica, Nuculana crassiparva, Nuculana elmana, Nuculana emarginata, Nuculana excavata, Nuculana fluvilutea, Nuculana forcarti, Nuculana fossa, Nuculana gnomon, Nuculana gracillima, Nuculana jamaicensis, Nuculana liciata, Nuculana magna, Nuculana mariae, Nuculana miaocunensis, Nuculana minuta, Nuculana moriyai, Nuculana multilineata, Nuculana orcutti, Nuculana oxia, Nuculana oxyrhyncha, Nuculana parva, Nuculana pernula, Nuculana praeradiata, Nuculana probellula, Nuculana rostellata, Nuculana rostratruncata, Nuculana semen, Nuculana semicrenulata, Nuculana smithvillensis, Nuculana spheniopsis, Nuculana sphenopsis, Nuculana subquadrata, Nuculana subtrigonalis, Nuculana thompsoni, Nuculana timorensis, Nuculana transversa, Nuculana triangulata, Nuculana trivitate, Nuculana trumani, Nuculana verrilliana, Nuculana vexillata, Nuculana virgo, Nuculana vitrea, Nuculana waterhousei, Nuculana wautebbeana, Nuculana wautubbeana, Nuculana whitmani, Nuculana willetti, Nuculana williamettensis
Type: Nuculana rostrata
Ecology: facultatively mobile infaunal deposit feeder-suspension feeder