Contradiction with 1 Chronicles 2:18
1 Chronicles 4:18 states "And his wife Jehudijah bare Jered the father of Gedor, and Heber the father of Soco, and Jekuthiel the father of Zanoah. And these are the sons of Bithiah the daughter of Pharaoh, which Mered took." This reference introduces different familial relations, which may cause confusion in lineage descriptions.
1 Chronicles 2:18: And Caleb the son of Hezron begat [children] of Azubah [his] wife, and of Jerioth: her sons [are] these; Jesher, and Shobab, and Ardon.