Temporal range: Carnian - Early Norian (Possible Middle Triassic origin)
life restoration of Hyperodapedon
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Rhynchosauria
Family: Hyperodapedontidae
Subfamily: Hyperodapedontinae
Chatterjee, 1969

Hyperodapedontinae is a subfamily of rhynchosaurs within the family Hyperodapedontidae. Fossils have been found from Argentina, Brasil, Canada, India, Madagascar, Scotland, Tanzania, USA and Zimbabwe.[1][2]


Hyperodapedontinae was named by Sankar Chatterjee in 1969 to include the genus Hyperodapedon.[3] In 1985, the genus Scaphonyx was added to the family.[4] Scaphonyx includes three dubious species, S. africanus, S. australis and S. fischeri.

Cladogram based on Langer et al. (2000) and Langer et al. (2010):[5][6]


Isalorhynchus 15px

?Supradapedon 15px

Teyumbaita 15px


H. huenei 15px

H. mariensis 15px

H. sanjuanensis 15px

H. gordoni 15px

H. huxleyi 15px

    Valid species that were first assigned to Scaphonyx.


  1. ^ Felipe Chinaglia Montefeltro (2008). "Inter-relações filogenéticas dos rincossauros (Diapsida, Archosauromorpha)". Unpublished Thesis, Biology Department, Universidade de Sa˜o Paulo, Ribeira˜o Preto: 203 pp.  line feed character in |journal= at position 28 (help)
  2. ^ David W. E. Hone and Michael J. Benton (2008). "A new genus of Rhynchosaur from the Middle Triassic of South-West England". Palaeontology. 51 (1): 95–115. doi:10.1111/j.1475-4983.2007.00739.x. 
  3. ^ Chatterjee, Sankar (1969). "Rhyncosaurs in time and Space". Proceedings of the Geological Society of London. 1658: 203–208. 
  4. ^ Benton, M. J. (1985). "Classification and phylogeny of the diapsid reptiles". Zoological Journal of the Linnean Society. 84 (2): 97–164. doi:10.1111/j.1096-3642.1985.tb01796.x. 
  5. ^ Max C. Langer and Cesar L. Schultz (2000). "A new species of the Late Triassic rhynchosaur Hyperodapedon from the Santa Maria Formation of south Brazil". Palaeontology. 43 (6): 633–652. 
  6. ^ Max C. Langer, Felipe C. Montefeltro, David E. Hone, Robin Whatley and Cesar L. Schultz (2010). "On Fodonyx spenceri and a new rhynchosaur from the Middle Triassic of Devon". Journal of Vertebrate Paleontology. 30 (6): 1884–1888. doi:10.1080/02724634.2010.521901. 


Template:Project Rhynchosauria Subfamilies Template:Project Rhynchosauria Taxonomy

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