The ectopterygoid is dermal bone located at the anterior part of the palatoquadrate. It is first visible as a very thin ossification along the anteroventral border of the palatoquadrate cartilage (6.4 mm). In adults it is a long sliver of bone that is narrow anteriorly where it meets the entopterygoid in a synostosis. It is slightly wider at its posterior synostosis with the quadrate. [ ORCiD:0000-0002-9900-7880 GOC:ymb ]
Synonyms: ectopterygoids
Term information
Term relations
- dermal bone
- endoderm-derived structure
- ectopterygoid bone
- part of some dermatocranium
- part of some palatoquadrate arch