Bivalvia - Carditida - Carditidae
Alternative spelling: Plionema
Parent taxon: Cyclocardia according to L. R. Cox et al. 1969
See also Sepkoski 2002
Sister taxa: Cardita (Cyclocardia) steinkei, Cyclocardia (Arcturellina), Cyclocardia (Cyclocardia), Cyclocardia (Scalaricardita), Cyclocardia (Vimentum), Cyclocardia abesinaiensis, Cyclocardia akagii, Cyclocardia borealis, Cyclocardia castor, Cyclocardia castrana, Cyclocardia christiei, Cyclocardia compressa, Cyclocardia dodairensis, Cyclocardia granulata, Cyclocardia hannai, Cyclocardia hannibali, Cyclocardia kurilensis, Cyclocardia mesembria, Cyclocardia moniligena, Cyclocardia novangliae, Cyclocardia pseutella, Cyclocardia spurca, Cyclocardia subtenta, Cyclocardia terryi, Cyclocardia tokunagai, Cyclocardia trentensis, Cyclocardia velutinus, Cyclocardia yoshidai, Cyclocardia zuliana, Venericardia (Cyclocardia) ferruginea, Venericardia (Cyclocardia) harukii, Venericardia (Cyclocardia) otatsumei, Venericardia (Cyclocardia) yokoyamai
Subtaxa: none
Ecology: facultatively mobile semi-infaunal suspension feeder
Distribution: there are no occurrences of Cyclocardia (Plionema) in the database