And she conceived, and bare a son; and he called his name Er.
Referenced Verses
Gen 46:12 : 12 And the sons of Judah; Er, and Onan, and Shelah, and Pharez, and Zerah: but Er and Onan died in the land of Canaan. And the sons of Pharez were Hezron and Hamul.
Num 26:19 : 19 The sons of Judah [were] Er and Onan: and Er and Onan died in the land of Canaan.