Chimaeriformes

cartilaginous fish in the order Chimaeriformes Chimaeriformes (Chimaeriformes) is an order comprising closely related families of organisms. It contains 3 families with 45 known species. This includes the family groups Callorhinchidae, Chimaeridae, and Rhinochimaeridae. Among its members, 4 species are currently classified as threatened (Critically Endangered, Endangered, or Vulnerable). It belongs to Holocephali (Holocephali).