Lepidopleurida

order of molluscs Lepidopleurida (Lepidopleurida) is an order comprising closely related families of organisms. It contains 2 families with 4 known species. This includes the family groups Hanleyidae, and Leptochitonidae. Among its members, 1 species are currently classified as threatened (Critically Endangered, Endangered, or Vulnerable). It belongs to Polyplacophora (Polyplacophora).