See text Hammatoceratidae is a family of lower and middle Jurassic ammonites included in the superfamily Hildoceratoidea.

[1] Hammatoceratidae comprises genera which are characterized by ribbed evolute shells (all whorls visible), some bearing keels along the venter.

In the outdated classification of the 1957 American Treatise on Invertebrate Paleontology, Hammatoceratidae was included in the superfamily Hildoceratoidea and divided into two subfamilies, the earlier Phymatoceratinae, and later Hammatoceratinae.

Hammatoceratinae includes Rarenodia, Geczyceras, Bredyia, Parammatoceras, Crestaites, Erycitoides, Euaptetoceras, Eudmetoceras, Fissilobiceras, Hammatoceras, Onychoceras, Paviatites, Planammatoceras, Pseudaptetoceras, and Puchenquia.

[3] Fissilobiceras, included in the Sonniniidae in the Treatise, 1957,[2] differs from typical hammatoceratids in being rather involude and smooth shelled.