- Although this character was originally introduced during DC's Earth-One era of publication, their existence following the events of the 1985–86 limited series Crisis on Infinite Earths remains intact. However, some elements of the character's Pre-Crisis history may have been altered or removed for Post-Crisis New Earth continuity, and should be considered apocryphal.
- This Syonide has not appeared in any post-Crisis New Earth stories, but he has been mentioned post-Crisis by his successor, Syonide II.
- 5 Appearances of Syonide I (New Earth)
- 3 Images featuring Syonide I (New Earth)
- Quotations by or about Syonide I (New Earth)
- Character Gallery: Syonide I (New Earth)