Serudaptus is an extinct genus of halcyornithid bird from the Middle Eocene Messel pit in Hesse, Germany.

The tibiotarsus features a crest on the medial side, a characteristic shared by modern climbing birds, together with the long claws and short tarsometatarsus suggesting adapatation for a scansorial lifestyle.

[3] SMF-ME 1283, a poorly preserved halcyornithid specimen, is compared to Serudaptus pohli based on close similarity of the limb proportions.

SMF-ME 1283 is smaller than the Serudaptus holotype, and could represent a new species of the genus, a juvenile specimen, or an example of sexual dimorphism in size.

[1] Serudaptus is a member of the Halcyornithidae, a family of zygodactyl birds currently presumed to be relatives of both the parrots and songbirds.