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IRMNG taxon details

Sphenodontidae Cope, 1869

104181  (urn:lsid:irmng.org:taxname:104181)

  1. Biota
  2. Animalia (Kingdom)
  3. Chordata (Phylum)
  4. Vertebrata (Subphylum)
  5. Tetrapoda (Superclass)
  6. Reptilia (Class)
  7. Rhynchocephalia (Order)
  8. Sphenodontidae (Family)
accepted
Family

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  1. Genus Alamitosphenos Agnolín, Aranciaga Rolando, Chimento & Novas, 2024 †
  2. Genus Ankylosphenodon Reynoso, 2000 †
  3. Genus Chometokadmon Costa, 1864 †
  4. Genus Homoeosaurus Meyer, 1845 †
  5. Genus Kaikaifilusaurus Simon & Kellner, 2003 †
  6. Genus Kawasphenodon Apesteguı́a, 2005 †
  7. Genus Lamarquesaurus Apesteguı́a & Rougier, 2007 †
  8. Genus Navajosphenodon Simões, Kinney-Broderick & Pierce, 2022 †
  9. Genus Notosphenos Agnolín, Aranciaga Rolando, Manabe, Tsuihiji & Novas, 2025 †
  10. Genus Oenosaurus Rauhut, Heyng, López-Arbarello & Hecker, 2012 †
  11. Genus Paleollanosaurus Heckert, 2004 †
  12. Genus Patagosphenos Gentil, Agnolin, Garcia Marsà, Motta & Novas, 2019 †
  13. Genus Planocephalosaurus Fraser, 1982 †
  14. Genus Sphenodon Gray, 1831
  15. Genus Sphenofontis Villa, Montie, Röper, Rothgaenger & Rauhut, 2021 †
  16. Genus Sphenotitan Martínez, Apaldetti, Colombi, Praderio, Fernandez, Santi Malnis, Correa, Abelin & Alcober, 2013 †
  17. Genus Sphenovipera Reynoso, 2005 †
  18. Genus Theretairus Simpson, 1926 †
  19. Genus Tika Apesteguía, Garberoglio & Gómez, 2021 †
  20. Genus Hatteria Gray, 1842 accepted as Sphenodon Gray, 1831
  21. Genus Homosaurus von Meyer, 1847 † accepted as Homoeosaurus Meyer, 1845 †
  22. Genus Priosphenodon Apesteguía & Novas, 2003 † accepted as Kaikaifilusaurus Simon & Kellner, 2003 † (unaccepted > junior subjective synonym)
  23. Genus Sphaenodon Gray, 1831 accepted as Sphenodon Gray, 1831 (Rejected name (ICZN))
  24. Genus Sphenodon Boulenger, 1889 accepted as Sphenodon Gray, 1831 (later usage)
  25. Genus Cynosphenodon Reynoso, 1996 † (uncertain, unassessed)
  26. Genus Diphydontosaurus Whiteside, 1986 † (uncertain, unassessed)
  27. Genus Homeosaurus Meyer, 1847 † (uncertain, unassessed)
  28. Genus Kallimodon Cocude-Michel, 1963 † (uncertain, unassessed)
  29. Genus Opisthias Gilmore, 1909 † (uncertain, unassessed)
  30. Genus Palacrodon Broom, 1906 † (uncertain, unassessed)
  31. Genus Pelecymala Fraser, 1986 † (uncertain, unassessed)
  32. Genus Rhynchocephalus Owen, 1845 † (uncertain, unassessed)
  33. Genus Sapheosaurus Meyer, 1850 † (uncertain, unassessed)
  34. Genus Sigmala Fraser, 1986 † (uncertain, unassessed)
  35. Genus Toxolophosaurus Olson, 1960 † (uncertain, unassessed)
marine, brackish
recent + fossil
Not documented
IRMNG (2021). Sphenodontidae Cope, 1869. Accessed at: https://www.irmng.org/aphia.php?p=taxdetails&id=104181 on 2026-01-20
Date
action
by
2006-09-19 22:00:00Z
created
Rees, Tony
2011-12-31 23:00:00Z
changed
Rees, Tony

basis of record Parker, S.P. (ed). (1982). Synopsis and Classification of Living Organisms. McGraw-Hill, New York. 2 volumes. [details] 

extant flag source Benton, M.J. (ed). (1993). The Fossil Record 2. Chapman & Hall, London, 845 pp. [details] 

habitat flag source Benton, M.J. (ed). (1993). The Fossil Record 2. Chapman & Hall, London, 845 pp. [details] 
Unreviewed
Classification Eukaryota (Superkingdom) > Animalia (Kingdom) > Eumetazoa (Subkingdom) > Chordata (Phylum) > Vertebrata (Subphylum) > Reptilia (Class) > Lepidosauria (Subclass) > Rhynchocephalia (Order) > Sphenodontidae (Family) [details]

Descriptive info Benton, 1993 habitat flag(s): T; stratigraphic range: Triassic (Carnian)-Holocene (?Recent) [details]
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