Baltoceratidae Kobayashi, 1935 † (redescription)
Braulioceras Kröger, Beresi & Landing, 2007 † (original description)
Braulioceras sanjuanense Kröger, Beresi & Landing, 2007 † (original description)
Cochlioceras Eichwald, 1860 † (basis of record)
Cochlioceras avus Eichwald, 1860 † (basis of record)
Cochlioceras sinense Chang, 1957 † accepted as Cochlioceras avus Eichwald, 1860 † (source of synonymy)
Eosomichelinoceras J.-Y. Chen, 1974 † (basis of record)
Eosomichelinoceras baldisii Kröger, Beresi & Landing, 2007 † (original description)
Eosomichelinoceras huananense J.-Y. Chen, 1974 † (basis of record)
Gangshanoceras Zou, 1988 † (basis of record)
Gangshanoceras villicumense Kröger, Beresi & Landing, 2007 † (original description)
Palorthoceras Kröger, Beresi & Landing, 2007 † (original description)
Palorthoceras kayseri Kröger, Beresi & Landing, 2007 † (original description)
Proteoceratidae Flower, 1962 † (additional source)
Rhynchorthoceras minor Kröger, Beresi & Landing, 2007 † (original description)
Sactorthoceratidae Flower, 1946 † (additional source)

Argentina for Braulioceras sanjuanense Kröger, Beresi & Landing, 2007 † 
Argentina for Eosomichelinoceras baldisii Kröger, Beresi & Landing, 2007 † 
Argentina for Gangshanoceras villicumense Kröger, Beresi & Landing, 2007 † 
Argentina for Rhynchorthoceras minor Kröger, Beresi & Landing, 2007 † 

 Stratigraphy

 for Baltoceratidae Kobayashi, 1935 †

Upper Lower–Middle Ordovician [details]

 Stratigraphy

 for Cochlioceras Eichwald, 1860 †

Upper Lower–Middle Ordovician [details]

 Stratigraphy

 for Eosomichelinoceras J.-Y. Chen, 1974 †

Upper Lower–Middle Ordovician [details]

 Stratigraphy

 for Gangshanoceras Zou, 1988 †

Upper Lower–Middle Ordovician [details]

 Stratigraphy

 for Palorthoceras Kröger, Beresi & Landing, 2007 †

Upper Lower–lower Middle Ordovician [details]

 Stratigraphy

 for Rhynchorthoceras Remelé, 1882 †

Middle Ordovician [details]