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Surangular

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The surangular or suprangular is a jaw bone found in most land vertebrates, except mammals. Usually in the back of the jaw, on the upper edge, it is connected to all other jaw bones: dentary, angular, splenial and articular. It is often a muscle attachment site. It has been noted in dinosaurs.

References

Bones in the tetrapod skeleton
Skull
Cranium
Skull roof
Composite bones
Braincase
Composite bones
Palate
Mandible
Hyoid
Postcranial skeleton
Axial
Vertebrae
Ribs
Appendicular
Pectoral girdle
Forelimb
Manus
Carpus
Distal carpals
Pelvic girdle
Hindlimb
Pes
Tarsus
Proximal tarsals
Centralia
  • Centrale 1
  • Centrale 2
  • Centrale 3
  • Centrale 4
Distal tarsals
Composite tarsals
Miscellaneous
  • Parentheses denote bones that receive a different name in particular clades
  • Italics denote neomorphic bones present only in particular clades
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