Pyxidinopsis protospinosus

"protospinosus" Zevenboom and Santarelli in Zevenboom, 1995, p.154, pl.9, figs.4-8. Holotype: Zevenboom, 1995, pl.9, figs.7-8. Name not validly published: considered a manuscript name. The epithet is correctly rendered as "protospinosus", not "protospinosis". Age: late Early Miocene-earliest Mid Miocene.