PlaxiphoraPlaxiphora is a genus of chitons in the family Mopaliidae. It is distributed in the Atlantic, Indian, and Pacific Oceans, primarily in the south-temperate and subantarctic regions.SpeciesThere are 22 species:Extinct speciesIn 2024, Sirenko and Dell'Angelo described the first extinct species of the genus, Plaxiphorma luzanovskae, discovered through fossils from the Paleocene of Ukraine.