These lists of synapsids collectively include every genus that has ever been included in the clade Synapsida- the mammals and their evolutionary precursors. The lists includes accepted genera along with those now considered invalid, doubtful ( nomina dubia), not formally published ( nomina nuda), junior synonyms of more established names, as well as genera that are no longer considered synapsids.

• List of pelycosaurs
• List of therapsids
• List of prehistoric mammals
• List of mammals

• List of reptiles
  • List of birds

• Main Groups of Non-Mammalian Synapsida

This article includes a species-related list of lists.