WASHINGTON (CNS) -- Pope Francis has accepted the resignation of Bishop Martin J. Amos of Davenport, Iowa, and named as his successor Msgr. Thomas R. Zinkula, a priest of the Archdiocese of Dubuque, Iowa, who is currently rector of St. Pius X Seminary at Loras College in Dubuque.

The pope also has named Father John P. Dolan as an auxiliary bishop of San Diego. He is episcopal vicar for clergy in the diocese and a parish pastor.

The appointments were announced April 19 in Washington by Archbishop Christophe Pierre, apostolic nuncio to the United States.

Bishop Amos is 75, the age at which canon law requires bishops to turn in their resignation to the pope. He has headed the Davenport Diocese since 2006.

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