After Parker, 1982, “The Tree of Life”, and Grimaldi & Engel, 2005

<==o Scarabaeoidea (lehtisarviset, turilasmaiset kovakuoriaiset)
   |-- Glaresidae
   `--+--o Scarabaeidae (scarabs; lehtisarviset)
      |  |?-o †Holcorobeus U.Jur.-Cret.
      |  |  |-- †H. vittatus
      |  |  `-- †H. nigrimontanus
      |  |-- Cetoniinae
      |  |-- Dynastinae
      |  |-- Rutelinae
      |  |-- Melolonthinae
      |  |-- Aphodiinae
      |  `-- Scarabaeinae
      `--+--+-- Geotrupidae
         |  `--+-- Ochodaeidae
         |     `--+-- Hybosoridae
         |        `-- Ceratocanthidae
         `--+-- Glaphyridae
            `--+--+-- Pleocomidae
               |  `-- Bolboceratidae
               `--+-- Trogidae (trogids, hide beetles)
                  `--+-- Passalidae
                     `--+-- Lucanidae (kampasarviset)
                        `-- Diphyllostomatidae

Reference(s):