title: Trapezioidea
text: # Trapezioidea
  
  Trapezioidea is a superfamily of crabs. Its members live symbiotically with corals, and have a fossil record stretching back to the Eocene.
  
  ## Families
  
  The World Register of Marine Species lists the following families:
  
  * Domeciidae Ortmann, 1893
  * Tetraliidae Castro, Ng & Ahyong, 2004
  * Trapeziidae Miers, 1886
  