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Orthacodontidae

Extinct family of sharks From Wikipedia, the free encyclopedia

Orthacodontidae
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Orthacodontidae (also spelled Orthacodidae[1]) is an extinct family of sharks. It is disputed as to whether it belongs to the modern shark order Hexanchiformes,[2] or the extinct order Synechodontiformes.[3] It contains two genera. Some other authors included it in Lamniformes.[4]

Quick Facts Scientific classification, Genera ...
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Species

  • Occitanodus Guinot, Cappetta & Adnet, 2014
    • Occitanodus sudrei Guinot, Cappetta & Adnet, 2014
  • Sphenodus Agassiz, 1843 (Possibly a nomen dubium)[5]
    • Sphenodus alpinus Gümbel, 1861
    • Sphenodus longidens Agassiz, 1843
    • Sphenodus lundgreni Davis, 1890
    • Sphenodus macer Quenstedt, 1852?
    • Sphenodus nitidus Wagner, 1862?
    • Sphenodus planus Agassiz, 1843
    • Sphenodus rectidens Emmons, 1858
    • Sphenodus robustidens Seguenza, 1900
    • Sphenodus tithonius Gemmellaro, 1871
    • Sphenodus virgai Gemmellaro, 1871
  • Archaeogracilidens Villalobos-Segura et al. 2025
    • Archaeogracilidens macer Quenstedt, 1852
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References

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