Postorbital bone
Appearance
(Redirected from Postorbital)
![](http://178.128.105.246/host-http-upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Duck_postorbital.jpg/163px-Duck_postorbital.jpg)
![](http://178.128.105.246/host-http-upload.wikimedia.org/wikipedia/commons/thumb/4/44/Dromaeosaurus_skull_en.svg/248px-Dromaeosaurus_skull_en.svg.png)
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.
References
[edit]- Roemer, A. S. 1956. Osteology of the Reptiles. University of Chicago Press. 772 pp.