Parent taxon: Avicula according to Meek and Hayden 1865
See also Arp and Seppelt 2012, Bouchet et al. 2010, Cox 1961, McRoberts 2011, Ros-Franch et al. 2014, Russell and Landes 1937, Scholz et al. 2008, Sepkoski 2002 and Vokes 1980
Sister taxa: Avicula aculeata, Avicula aequivalvis, Avicula alternans, Avicula angulosa, Avicula arcoidea, Avicula arcuata, Avicula aspera, Avicula atlantica, Avicula azzarola, Avicula beisseli, Avicula bifrons, Avicula bittneri, Avicula boeckhi, Avicula bronni, Avicula carinthiaca, Avicula caudata, Avicula caudataeformis, Avicula cingulata, Avicula cortinensis, Avicula cosmeta, Avicula crispata, Avicula dalailamae, Avicula decipiens, Avicula depressa, Avicula deshayesi, Avicula destefanoi, Avicula difficilis, Avicula dunkeri, Avicula eximia, Avicula falcata, Avicula frechii, Avicula gainsana, Avicula gallensteini, Avicula gastrodes, Avicula gessneri, Avicula geyeri, Avicula glaberrima, Avicula globulus, Avicula grabovicensis, Avicula gregaria, Avicula gregoryi, Avicula hallensis, Avicula hofmanni, Avicula homfrayi, Avicula insolita, Avicula janiriformis, Avicula japodica, Avicula kautzkyi, Avicula keyserlingi, Avicula kokeni, Avicula kossmati, Avicula kutassyi, Avicula laczkoi, Avicula launsdorfiensis, Avicula lineata, Avicula loomisi, Avicula lorata, Avicula miljacensis, Avicula mucronata, Avicula muensteri, Avicula nitida, Avicula nodosa, Avicula obtusa, Avicula ochotica, Avicula oldroydii, Avicula pannonica, Avicula pellucida, Avicula plicatostriata, Avicula problematica, Avicula prosslinensis, Avicula pseudofrederici, Avicula roguensis, Avicula salomoni, Avicula seisiana, Avicula sinemuriensis, Avicula soperi, Avicula spinicosta, Avicula sturoides, Avicula tarentina, Avicula tofanae, Avicula trigonata, Avicula zeuschneri
Subtaxa: Avicula (Oxytoma) whiteavesi Avicula (Oxytoma) wyomingensis
Ecology: facultatively mobile infaunal suspension feeder
Distribution: found only at USGS Mesozoic loc. 1010 (Cretaceous of California)