| Nominal Species (n = 2) | Present allocation (n = 2) | Ref. |
|---|---|---|
| Xyloplax medusiformis Baker, Rowe & Clark, 1986 | Xyloplax medusiformis | 19 |
| Xyloplax princealberti Payne, Tilic, Boschen-Rose, Gannon, Stiller, Hiley, Grupe, Mah & Rouse, 2023 | Xyloplax princealberti | 3477 |