Nicene and Post-Nicene Fathers, Ser. II, Vol. XIV:
The Canons of the Synods of Sardica, Carthage, Constantinople, and Carthage Under St. Cyprian, Which Canons Were Received by the Council in Trullo and Ratified by II. Nice.: Introductory Note.

p. 410 Introductory Note.

I have placed the canons of Sardica and those of Carthage and those of the Council held at Constantinople under Nectarius and Theophilus, and that of the Council of Carthage under St. Cyprian, immediately after the Council in Trullo, because in the second canon of that synod they are for the first time mentioned by name as being accepted by the Universal Church.