| Pessopteryx Temporal range: Early Triassic, Olenekian PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | †Ichthyosauria |
| Family: | †Merriamosauridae |
| Genus: | †Pessopteryx Wiman, 1910 |
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Pessopteryx is an extinct genus of ichthyosaur from the Early Triassic (Olenekian) of Svalbard, Norway. The genus originally contained four species, P. nisseri, P. arctica, P. pinguis, and P. minor, which were named in 1910 by Carl Wiman. Only P. nisseri is still considered valid; P. arctica and P. pinguis are considered nomina dubia while P. minor was reassigned to the tenuous genus Isfjordosaurus. Omphalosaurus nisseri, Merriamosaurus hulkei, and Rotundopteryx hulkei are all junior synonyms of P. nisseri.
References
- ^ Maisch, M. W. (2010). "Phylogeny, systematics, and origin of the Ichthyosauria – the state of the art" (PDF). Palaeodiversity. 3: 151–214.
- Wiman, C. (1910). "Ichthyosaurier aus der Trias Spitzbergens" [Ichthyosaurs from the Triassic of Spitzbergen] (PDF). Bulletin of the Geological Institution of the University of Upsala (in German). 10: 125–148.
- ^ Maxwell, E. E.; Kear, B. P. (2013). "Triassic ichthyopterygian assemblages of the Svalbard archipelago: A reassessment of taxonomy and distribution". GFF. 135 (1): 85–94. doi:10.1080/11035897.2012.759145.
| Taxon identifiers | |
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| Pessopteryx | |
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