Bivalvia - Lucinida - Lucinidae

Alternative combination: Phacoides fluctivagus

Full reference: C. J. Maury. 1924. Fosseis Terciarios Do Brazil. Serico Geologico E Mineralogico Do Brazil Monograph 49

Belongs to Lucina (Lucinisca) according to V. A. Tavora et al. 2004

Sister taxa: Lucina (Lucinisca) centrifuga, Lucina (Lucinisca) fausta, Lucina (Lucinisca) varisculpta, Lucinisca bocasensis, Lucinisca calhounensis, Lucinisca costaricensis, Lucinisca cribrarius, Lucinisca fenestrata, Lucinisca hispaniolana, Lucinisca mirandana, Lucinisca muricata, Lucinisca nassula, Lucinisca nuttalli, Lucinisca protista

Type specimen: Its type locality is Rio Pirabas (Maury coll.), which is in a Miocene shallow subtidal limestone/limestone in the Pirabas Formation of Brazil

Ecology: facultatively mobile infaunal chemosymbiotic