Hyperodapedontinae

Hyperodapedontinae
Temporal range: Carnian - Early Norian

(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.[1][2]

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.[3][4] 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)".[4][5]

The cladogram below follows Mukherjee & Ray (2014):[6]

Hyperodapedontinae

Isalorhynchus genovefae




Teyumbaita sulcognathus


Hyperodapedon

H. huenei





H. mariensis



H. sanjuanensis



H. sp from Wolfville





H. sp from India




H. huxleyi




H. gordoni




H. sp from Wyoming



H. sp from Zimbabwe



H. tikiensis



Supradapedon stockleyi










       Valid species that were first assigned to Scaphonyx.

References

  1. ↑ Felipe Chinaglia Montefeltro (2008). "Inter-relações filogenéticas dos rincossauros (Diapsida, Archosauromorpha)". Unpublished Thesis, Biology Department, Universidade de Saõ Paulo, Ribeiraõ Preto: 203 pp.
  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. 1 2 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. doi:10.1111/1475-4983.00143.
  5. ↑ 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.
  6. ↑ Mukherjee, D., Ray, S. (2014), A new Hyperodapedon (Archosauromorpha, Rhynchosauria) from the Upper Triassic of India: implications for rhynchosaur phylogeny. Palaeontology. doi: 10.1111/pala.12113


This article is issued from Wikipedia - version of the Sunday, May 01, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.