Scarabaeoidea is a superfamily of beetles, the only subgroup of the infraorder Scarabaeiformia. Around 35,000 species are placed in this superfamily and some 200 new species are described each year. Its constituent families are also undergoing revision presently, and the family list below is only preliminary. This superfamily includes some of the largest beetles extant today, including rhinoceros beetles, (Dynastinae), the Hercules beetle (Dynastes hercules) and Goliath beetles (Goliathus sp.). The oldest confirmed member of the group is the extinct genus Alloioscarabaeus from the Middle Jurassic period Jiulongshan Formation of Inner Mongolia, China.

Families

The following families are listed in Bouchard (2011):