--Why does Seir's name Abruptly show up as the various Adamic lineal descendants lineage are being described? In other words, who are the ancestors of Seir?
--Also, are there any other people who Abruptly show up in the bible when lineal descendants lineage are being described?
1 Chronicles 1:34-42 (NASB)
34 Abraham became the father of Isaac. The sons of Isaac were Esau and Israel. 35 The sons of Esau were Eliphaz, Reuel, Jeush, Jalam and Korah. 36 The sons of Eliphaz were Teman, Omar, [g]Zephi, Gatam, Kenaz, Timna and Amalek. 37 The sons of Reuel were Nahath, Zerah, Shammah and Mizzah. 38 The sons of Seir were Lotan, Shobal, Zibeon, Anah, Dishon, Ezer and Dishan. 39 The sons of Lotan were Hori and [h]Homam; and Lotan’s sister was Timna. 40 The sons of Shobal were [i]Alian, Manahath, Ebal, [j]Shephi and Onam. And the sons of Zibeon were Aiah and Anah. 41 The [k]son of Anah was Dishon. And the sons of Dishon were [l]Hamran, Eshban, Ithran and Cheran. 42 The sons of Ezer were Bilhan, Zaavan and [m]Jaakan. The sons of Dishan were Uz and Aran.