Pessopteryx
Pessopteryx is an extinct genus of ichthyosaur from the Early Triassic (Olenekian) of Svalbard, Norway.[1] The genus originally contained four species, P. nisseri, P. arctica, P. pinguis, and P. minor, which were named in 1910 by Carl Wiman.[2][3] 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.[3] Omphalosaurus nisseri, Merriamosaurus hulkei, and Rotundopteryx hulkei are all junior synonyms of P. nisseri.[1]
| Pessopteryx Temporal range: Early Triassic, | |
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | †Ichthyosauria |
| Family: | †Merriamosauridae |
| Genus: | †Pessopteryx Wiman, 1910 |
| Species | |
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| Synonyms | |
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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 Swedish). 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.
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