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Surangular

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This is an old revision of this page, as edited by Borophagus (talk | contribs) at 16:52, 26 September 2025 (The surangular is part of the lower jaw, not the upper.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Skull diagram of the dinosaur Proceratosaurus, showing location of surangular
Skull and jaws diagram of the primitive synapsid Dimetrodon, showing location of surangular

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,[1] it is connected to all other jaw bones: dentary, angular, splenial and articular.[citation needed] It is often a muscle attachment site. It has been noted in dinosaurs.[2]

References

  1. ^ Dunham, Will (April 18, 2024). "Gigantic marine reptile's fossils found by British girl and father". Reuters. Retrieved 12 May 2025.
  2. ^ Lomax, Dean R.; Salle, Paul de la; Perillo, Marcello; Reynolds, Justin; Reynolds, Ruby; Waldron, James F. (17 April 2024). "The last giants: New evidence for giant Late Triassic (Rhaetian) ichthyosaurs from the UK". PLOS ONE. 19 (4): e0300289. Bibcode:2024PLoSO..1900289L. doi:10.1371/journal.pone.0300289. ISSN 1932-6203. PMC 11023487. PMID 38630678.{{cite journal}}: CS1 maint: article number as page number (link)