[5] From its beginning, the diocese of San Marco was directly dependent on the Roman See, and was not (unlike Malvito) part of any metropolitan province.

The Pope's stated causa (reason for acting) was that the diocese was attached to the Roman Church, ad Romanam ecclesiam nullo medio spectare dignoscitur.

[9] The seminary of San Marco was established by Bishop Giovanni Antonio Grignetti (1578–1585), in accordance with the decrees of the Council of Trent.

[11] Up until the mid-eighteenth century, the seminaries were simple schools of grammar, practical mathematics, ecclesiastical computations, Christian doctrine (as prescribed by Roberto Bellarmine), and Gregorian chant.

[17] On February 13, 1919, congregations within the diocese were transferred to form the Eparchy of Lungro in the Italo-Albanian Catholic Church.

[14] On January 30, 2001, the Archdiocese of Cosenza-Bisignano was elevated to a metropolitan see, with the Diocese of San Marco Argentano-Scalea as a suffragan.

[18] Erected: before 1171 Latin Name: Sancti Marci Immediately Subject to the Holy See United: 27 June 1818 with the Diocese of Bisignano Latin Name: Sancti Marci et Bisinianensis Immediately Subject to the Holy See 4 April 1979 United with the Archdiocese of Cosenza which was then split to form the Archdiocese of Cosenza e Bisignano and the Diocese of San Marco Argentano-Scalea Latin Name: Sancti Marci Argentanensis-Scaleensis This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed.