Examples from the Web for basisphenoid
The basisphenoid is well ossified, and there is no parasphenoid.
The basisphenoid (fig. 45, 12) is an unpaired wedge-shaped bone, united along a deep vertical suture with the basi-occipital.
The basisphenoid, although somewhat crushed, appears to be fused to the parasphenoid.
The basisphenoid is a little bone above the myotome or tube in which runs the rectus muscle of the eye.A Guide to the Study of Fishes, Volume 1 (of 2)|David Starr Jordan
Dorso-laterally the basisphenoid is joined by the alisphenoid, which forms most of the posterior wall of the orbit.