Gastropoda - Prosobranchia - Pseudozygopleuridae
Alternative spelling: Palaeostylus (Pseudozygopleura)
Synonyms: Pseudozygopleura (Pyrgozyga) Knight 1930, Pyrgozyga Knight 1930
Full reference: J. B. Knight. 1930. The gastropods of the St. Louis, Missouri, Pennsylvanian outlier: the Pseudozygopleurinae. Journal of Paleontology Memoir 4(4):1-88
Parent taxon: Pseudozygopleuridae according to P. Bouchet et al. 2005
Sister taxa: Cyclozyga, Eoptychia, Gamizyga, Helminthozyga, Hemizyga, Microptychis, Plocezyga, Pseudoplocezyga, Stephanozyga
Subtaxa: Palaeostylus (Pseudozygopleura) belli, Palaeostylus (Pseudozygopleura) eucharis, Palaeostylus (Pseudozygopleura) terebrus, Pseudozygopleura (Hemizygoides), Pseudozygopleura (Pseudozygopleura), Pseudozygopleura (Pyrgozyga) warthini, Pseudozygopleura acuminata, Pseudozygopleura angustata, Pseudozygopleura assertonsoris, Pseudozygopleura baltea, Pseudozygopleura cirritus, Pseudozygopleura condrai, Pseudozygopleura contractus, Pseudozygopleura croneisi, Pseudozygopleura deloi, Pseudozygopleura eximia, Pseudozygopleura funis, Pseudozygopleura girtyi, Pseudozygopleura gracilis, Pseudozygopleura gradatus, Pseudozygopleura irrugata, Pseudozygopleura kellettae, Pseudozygopleura knighti, Pseudozygopleura lanceolatus, Pseudozygopleura lefebvrei, Pseudozygopleura limus, Pseudozygopleura macra, Pseudozygopleura micra, Pseudozygopleura moorei, Pseudozygopleura mucronatus, Pseudozygopleura multicostata, Pseudozygopleura palus, Pseudozygopleura pandus, Pseudozygopleura perversa, Pseudozygopleura plummeri, Pseudozygopleura pluricostata, Pseudozygopleura pugonis, Pseudozygopleura pulchra, Pseudozygopleura pupa, Pseudozygopleura rectus, Pseudozygopleura restis, Pseudozygopleura schucherti, Pseudozygopleura scitula, Pseudozygopleura scruposus, Pseudozygopleura semicostata, Pseudozygopleura sinuosior, Pseudozygopleura subulatus, Pseudozygopleura tenuivirga, Pseudozygopleura variegata, Pseudozygopleura yandellana
Ecology: epifaunal