Part of the base of the cranium between the basioccipital and the presphenoid, which usually ossifies separately in the embryo or in the young, and becomes a part of the sphenoid in the adult; in many animals it persists as a separate bone between the basioccipital bone and the presphenoidal bone. [ https://www.worldcat.org/search?q=bn%3A0-683-40008-8 MP:0000106 ]
Synonyms: basisphenoid
Term information
- AAO:0000040
- SCTID:95945003
- TAO:0000169
- MA:0001463
- FMA:321630
- EMAPA:18706
pheno_slim
relationship loss: part_of braincase and otic capsule skeleton (AAO:0000052)[AAO]
"Endochondral ossification of the ventromedial portion of the braincase." [AAO:0000040] // "An endochondral bone that is located ventral to the pterosphenoid and dorsal to the parasphenoid. Basisphenoid is a median bone that is usually Y-shaped." [TAO:0000169]
Endochondral ossification of the ventromedial portion of the braincase.[AAO]
An endochondral bone that is located ventral to the pterosphenoid and dorsal to the parasphenoid. Basisphenoid is a median bone that is usually Y-shaped.[TAO]