She conceived, and bore a son; and he named him Er.
Referenced Verses
Gen 46:12 : 12 The sons of Judah: Er, Onan, Shelah, Perez, and Zerah; but Er and Onan died in the land of Canaan. The sons of Perez were Hezron and Hamul.
Num 26:19 : 19 The sons of Judah: Er and Onan; and Er and Onan died in the land of Canaan.