Hyperodapedontinae

Hyperodapedontinae Temporal range: Carnian - Early Norian PreЄ Є O S D C P T J K Pg N (Possible Middle Triassic origin)
life restoration of Hyperodapedon
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	†Rhynchosauria
Family:	†Rhynchosauridae
Clade:	†Hyperodapedontidae
Subfamily:	†Hyperodapedontinae Chatterjee, 1969
Subgroups
See text.

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.

Phylogeny

Hyperodapedontinae was erected by Sankar Chatterjee in 1969 as a coordinate name of the family Hyperodapedontidae Lydekker, 1985. Chatterjee (1969) originally named Hyperodapedontinae to include all Late Triassic rhynchosaurs known at that time, H. gordoni, H. huxleyi and "Scaphonyx" fischeri, and proposed a morphological diagnosis for the clade. Scaphonyx includes two additional species, S. africanus and S. australis, all of which are currently believed to be dubious. As noted by Langer et al. (2000), using Chatterjee' morphological definition would exclude Teyumbaita and H. huenei from the clade, and thus it would be nested within Hyperodapedon. To preserve the name, with its original stratigraphical meaning, Langer et al. (2000) redefined Hyperodapedontinae as a stem-based taxon that includes "all rhynchosaurs closer to Hyperodapedon than to "Rhynchosaurus" spenceri (now Fodonyx)".

The cladogram below follows Mukherjee & Ray (2014):

Hyperodapedontinae	Isalorhynchus genovefae Teyumbaita sulcognathus 15px Hyperodapedon H. huenei 15px H. mariensis 15px H. sanjuanensis 15px H. sp from Wolfville 15px H. sp from India 15px H. huxleyi 15px H. gordoni 15px H. sp from Wyoming 15px H. sp from Zimbabwe H. tikiensis 15px Supradapedon stockleyi

       Valid species that were first assigned to Scaphonyx.