 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations .(January 2025) |
 | This article relies largely or entirely on a single source .(January 2025) |
The postorbital is one of the bones in vertebrate skulls which forms a portion of the dermal skull roof and, sometimes, a ring about the orbit. Generally, it is located behind the postfrontal and posteriorly to the orbital fenestra. In some vertebrates, the postorbital is fused with the postfrontal to create a postorbitofrontal. Birds have a separate postorbital as an embryo, but the bone fuses with the frontal before it hatches.
