Kionoceratidae is a family in the Orthocerida, proposed by Hyatt in 1900 for genera characterized by prominent ornamentation in the form of longitudinal ribs, ridges, or lirae, or combinations thereof, sometimes with similar transverse ornament or faint transverse annulations.

Middle Silurian genera related to Kionoceras studied by Barrande show a general internal similarity.

Anterior siphuncle segments tend to become fusiform, some being constricted at the septal openings.

Flower sought to include Kionceras along with related genera in what he called the "already overcrowded Michelinoceratidae".

Sweet (1964)[1] in the Treatise presented kionoceratids as a subfamily, the Kionoceratinae, in the orthocerid family Michelinoceratidae.