Shihtienfenia

Shihtienfenia
Temporal range: Changhsingian, 254.0–252.3 Ma[1]
↓
Maxilla of Honania complicidentata, which may be valid
Scientific classification
Kingdom:Animalia
Phylum:Chordata
Class:Reptilia
Clade:†Parareptilia
Order:†Procolophonomorpha
Clade:†Pareiasauria
Family:†Pareiasauridae
Genus:†Shihtienfenia
Young & Yeh, 1963
Type species
†Shihtienfenia permica
Young & Yeh, 1963
Species
  • †S. permica Young & Yeh, 1963
Synonyms[1]
  • Huanghesaurus liuliensis Gao, 1983
  • Shansisaurus xuecunensis Cheng 1980

Shihtienfenia was a pareiasaurid from the Late Permian of China.[1]

Species

Lee (1997) refers to S. xuecunensis as a metaspecies lacking the autapomorphies of Shihtienfenia. Tsuji & Müller (2009) seem to consider it a valid taxon for cladistic analysis, and like Lee 1997 place the two Chinese species close to Pareiasuchus.

S. permica (Young and Yeh, 1963);The skull of this pareiasaur is unknown. It is known originally from a number of isolated vertebrae, jaws, and limb-bones and an incomplete skeleton, all from a single locality (Shiqianfeng Formation at Baode, Shanxi). Shanshisaurus xuecunensis' Cheng, 1980 and Huanghesaurus liuliensis Gao, 1983 are synonyms.[2]

Classification

Shihtienfenia is unusual because of the presence of 6, rather than the usual 4, sacral vertebrae, and may belong in a separate subfamily, although Oskar Kuhn includes it under the Pareiasaurines in his monograph (Kuhn 1969). As with the Pareiasaurines the upper margin of the ilium is flat.

References

  1. 1 2 3 "†Shihtienfenia Young and Yeh 1963". Paleobiology Database. Fossilworks. Retrieved 19 July 2018.
  2. ↑ Benton, Michael J. (2016). "The Chinese pareiasaurs". Zoological Journal of the Linnean Society. 177 (4): 813–853. doi:10.1111/zoj.12389.


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